An iFixit teardown of the CDMA iPhone 4 headed for Verizon reveals a world mode chip in the device’s innards: Qualcomm’s MDM6600, which supports CDMA and EVDO network standards as well as GSM and HSPA+. It’s the same chip used in the Droid Pro, Motorola’s “global ready” Android phone.

In other words, Verizon’s CDMA iPhone isn’t a world phone–but it could have been, given a SIM card and some additional engineering. Which makes it likely that the next iteration of the iPhone will be. And if iPhone 5 proves to be global ready, iPad 2 likely will be as well, as Wedge analyst Brian Blair, who first floated the idea of the World iPad, notes.

“This is the proof of my thesis, I think,” he said of iFixit’s findings. “This is a dual–band GSM/CDMA chip that I believe will not only be in a “World iPad” in April as I mentioned last Fall but I also expect it will be in the new iPhone 5 in June. It makes sense for many reasons: but the main one is that Apple engineers will only have to design a product one time, same guts and parts for GSM as for CDMA.”

[Image credit: iFixit]

“HTC disagrees with Apple’s actions and will fully defend itself. HTC strongly advocates intellectual property protection and will continue to respect other innovators and their technologies as we have always done, but we will continue to embrace competition through our own innovation as a healthy way for consumers to get the best mobile experience possible,” HTC CEO Peter Chou said in the statement.

“From day one, HTC has focused on creating cutting-edge innovations that deliver unique value for people looking for a smartphone,” Chou continued. “In 1999 we started designing the XDA and T-Mobile Pocket PC Phone Edition, our first touch-screen smartphones, and they both shipped in 2002 with more than 50 additional HTC smartphone models shipping since then.”

The statement continues with a list of HTC’s technological firsts:

• First Windows PDA (1998)
• First Windows Phone (June 2002)
• First 3G CDMA EVDO smartphone (October 2005)
• First gesture-based smartphone (June 2007)
• First Google (GOOG) Android smartphone (October 2008)
• First 4G WiMax smartphone (November 2008)

The implication here seems to be that these “firsts” somehow negate Apple’s (AAPL) claim that the company violated 20 of its patents. And while it’s certainly possible that this is the case, it’s hard to accept HTC’s argument without a list of patents to back it up. Harder still when HTC says nothing about its legal strategy for dealing with Apple’s assault.

Does HTC plan to countersue? Does the company have IP of its own with which to mount a defense? Or will it simply take Apple to the mat with its “strong disagreement” and toothless positioning statements like the one above?

Interesting to contrast HTC’s response to the Apple’s suit to Palm’s (PALM) immediate and aggressive riposte to Apple COO Tim Cook’s comments about companies that infringe on its iPhone intellectual property:

“Palm has a long history of innovation that is reflected in our products and robust patent portfolio, and we have long been recognized for our fundamental patents in the mobile space. If faced with legal action, we are confident that we have the tools necessary to defend ourselves.”

UPDATE: In an interview with Reuters, Jason Mackenzie, vice president for HTC’s U.S. business, said HTC plans to issue a formal response to Apple’s claims in a matter of weeks. He did not say what form that response will take.

Further Reading:

• Apple Sues Nexus One Maker HTC Over iPhone Patents
• Apple Sues HTC [Complete Court Filings]
• Why HTC, Apple? And Why Now?
• Apple vs. Google: Game On
• What, HTC Worry?
• HTC May End Up Bringing Knife to Apple Gun Fight

“Speculation is rife that Apple will end its exclusive U.S. iPhone service deal with AT&T when the current contract expires in June 2010 and begin to offer phones that work with the Verizon network,” iSuppli analyst Francis Sideco said in a research note today. “However, iSuppli doesn’t believe this will be the case. The main reason Apple is likely to stick with AT&T beyond 2010 is the relatively wide usage and growth expected for the HSPA air standard used by the carrier for 3G data.”

As Sideco explains, “Cumulative global subscribers of HSPA wireless services, consisting of High-Speed Downlink Packet Access (HSDPA) and High-Speed Uplink Packet Access (HSUPA), are set to rise to 1.4 billion in 2012, up from 269.1 million in 2009. In contrast, cumulative subscribers for the EVDO standard used by Verizon will amount to 304.6 million in 2013, up from 145.2 million in 2009.”

A point worth noting, though it’s hard to imagine that Apple (AAPL) doesn’t harbor some resentment toward AT&T (T), which has undermined its carefully crafted iPhone experience. And if that’s the case, wouldn’t it make more sense for the company to extend its deal with AT&T, but not as an exclusive? That would allow Apple to hammer out a second deal with Verizon (VZ), which, according to some analysts, would more than double U.S. iPhone sales in the near term.

As Bernstein Research analyst Toni Sacconaghi noted this summer, “Verizon’s postpaid subscriber base is not only larger than AT&T’s, but more importantly, is untapped whereas we estimate more than 10 percent of AT&T’s postpaid users already have an iPhone.”

“Speculation is rife that Apple will end its exclusive U.S. iPhone service deal with AT&T when the current contract expires in June 2010 and begin to offer phones that work with the Verizon network,” iSuppli analyst Francis Sideco said in a research note today. “However, iSuppli doesn’t believe this will be the case. The main reason Apple is likely to stick with AT&T beyond 2010 is the relatively wide usage and growth expected for the HSPA air standard used by the carrier for 3G data.”

As Sideco explains, “Cumulative global subscribers of HSPA wireless services, consisting of High-Speed Downlink Packet Access (HSDPA) and High-Speed Uplink Packet Access (HSUPA), are set to rise to 1.4 billion in 2012, up from 269.1 million in 2009. In contrast, cumulative subscribers for the EVDO standard used by Verizon will amount to 304.6 million in 2013, up from 145.2 million in 2009.”

A point worth noting, though it’s hard to imagine that Apple (AAPL) doesn’t harbor some resentment toward AT&T (T), which has undermined its carefully crafted iPhone experience. And if that’s the case, wouldn’t it make more sense for the company to extend its deal with AT&T, but not as an exclusive? That would allow Apple to hammer out a second deal with Verizon (VZ), which, according to some analysts, would more than double U.S. iPhone sales in the near term.

As Bernstein Research analyst Toni Sacconaghi noted this summer, “Verizon’s postpaid subscriber base is not only larger than AT&T’s, but more importantly, is untapped whereas we estimate more than 10 percent of AT&T’s postpaid users already have an iPhone.”

By all appearances, the Pre is a slick little device. But is it formidable enough to stand its ground next to Apple’s iPhone, Research in Motion’s (RIMM) BlackBerry and the groaning board of Android devices currently in the handset market product pipeline? Palm (PALM) certainly seems to think so. In fact, the company is so confident in the Pre that CEO Ed Colligan seems to think it won’t need a sub-$200 price point to pull share from Apple (AAPL), et al. “Why would we do that when we have a significantly better product,” he asked ATD’s Peter Kafka earlier this afternoon.

Well, here’s one reason: To stay in business. Because despite Colligan’s claims of a “significantly better product,” Palm hasn’t raised the smartphone bar much (if at all) with the Pre. In fact, the device is as noteworthy for the features it may not include as for those it does. Absent from today’s grand unveiling was any mention of video. Also missing was a rival to Apple’s App Store and the robust developer-consumer ecosystem Apple has created around the iPhone and iPod touch. Even Google’s (GOOG) Android OS debuted with that. And the name; well, “Pre” isn’t likely to do very much for Palm’s already much diminished brand recognition.

Now, perhaps video and an app store are coming. But even if they do, will the Pre really be worth paying a premium for, as Colligan suggests? I’m not so sure–especially when the inevitable updates to the iPhone and BlackBerry remove the few advantages it does have over those devices. “Fast Web browsing” and “efficient multitasking” just aren’t big differentiators anymore.

That magnetized conductive charging platform sure is nice, though.

UPDATE: Turns out Palm is planning an App Store rival. According to the Pre press release, “The platform’s flexible environment will also allow developers to distribute their applications over-the-air via an on-device Palm application store.” And though no mention was made of video during Thursday’s Pre unveiling, the device will support it–both on the device and streaming. Said a Palm spokesperson, “The Pre has video playback, including YouTube video from the internet.”

PREVIOUSLY:

• Yeah. Those PC Guys Never Stood a Chance, Palm.
• Palm: Spare Change for Financial Viability?
• Alms for Palm?
• Palm New-ness: A Target Price of Zero
• Palm: Hey … Hello? Excuse Me … Over Here!

All of the major digital maps contain erroneous information about our street in Virginia, and don’t even show several new streets near our home that were built over three years ago. I infer that there is one source of cartography used by these Web services, and also by my Garmin navigation system. But I can’t find out what it is. How can an individual get something like this corrected?

There are actually two main companies that make the underlying maps that most of the navigation-device makers and digital-map sites use. One is called Tele Atlas (TLATF.PK), and one is called Navteq (NVT). Garmin (GRMN) uses Navteq. Each mapping company has a Web page where users can report errors or changes.

For Navteq’s error-reporting Web page, go to navteq.com and click on “Map Reporter.” For Tele Atlas’ similar page, go to teleatlas.com and click on “Report Map Changes.”

In reading your review of the new Gogo in-flight wireless Internet system, I wondered about two things: Does it support “virtual private networks,” and when will it be installed on Amtrak trains?

While I didn’t test this, Gogo’s maker, Aircell, says that VPNs, which are used by many big companies, do indeed work over the service.

As for Amtrak, the Gogo system wouldn’t work for trains, because its antennas point up, into the sky, and don’t cover ground locations like railroad tracks. However, if you are on an Amtrak train in an area where cellphone towers are near the tracks, and your laptop computer or cellphone can pick up cellular data signals, you can already surf the Web and do email and other online tasks on the train.

In fact, I happen to be writing this column on an Amtrak Acela train between Washington and New York, and, using a Verizon (VZ) laptop card, my laptop is able to access the Internet with only occasional lapses.

Because of problems I had with my computer, I lost my Internet Explorer favorites. How can I save them so I can easily restore them if they get wiped out again?

There are several methods. You should, of course, be backing up all your key data, including your browser favorites or bookmarks, regularly, either to a local external disk, or to an online backup service. That would create a fairly fresh backup of your favorites. You could also use one of several Web sites that specialize in hosting, and sharing, bookmarks or favorites. They allow you to add bookmarks to your online list as you surf, and also to upload and download the favorites and bookmarks you keep locally on your computer. The best known of these sites is probably del.icio.us, which is at http://del.icio.us.

The simplest method, however, is probably to just export your favorites to a file and save it in your Documents folder, on your desktop, or on a USB thumb drive. You can then use this file to restore your favorites in case of disaster. To do this in the latest version of Microsoft (MSFT) IE, click on the “Add to Favorites” button, select “Import and Export,” click “Next,” then click “Export Favorites” and walk through the steps that follow. Detailed instructions for all versions of IE are at: support.microsoft.com/kb/211089.

• You can find Mossberg’s Mailbox, and my other columns, online for free at the new All Things Digital web site, http://walt.allthingsd.com.

Well, this should be interesting. Because of scheduling issues, Kevin Martin and Lowell McAdam will be interviewed at the same time. Will the two hit it off on issues of Net neutrality, early termination fees, open access or none of the above?

Kevin J. Martin is chairman of the Federal Communications Commission, where he has served as a commissioner since 2001 and as chairman since 2005. During his term, he has conducted a balancing act between the interests of the technology and telecommunications industries. He mostly sided with Google (GOOG) in the effort to impose new openness rules on a large chunk of spectrum the FCC recently auctioned, and he has been publicly critical of the cable TV companies. He could be an important player in the battle over Net neutrality.

Lowell McAdam is president and CEO of Verizon Wireless (VZ), the nation’s second-largest wireless voice and data provider, and is chairman of the board of directors of CTIA, the wireless industry’s trade association and lobbying group. An engineer by training, Mr. McAdam has been an outspoken defender of the wireless industry’s practices, even when they have been criticized by the technology industry. However, he has recently launched an initiative to create a parallel “open” system at Verizon, which the company claims will allow any device and any application to operate on its network without interference from Verizon.

• Pulling up a chart that showcases the lousy broadband situation in the states, Walt kicks the conversation off with a hardball question for Martin: “You’re the chairman of the FCC,” says Walt. “How did you allow this to happen?” Big applause.
• Martin tries to dodge a bit, suggesting that the chart shows penetration. Walt corrects him, noting that what it actually shows are broadband speeds that are abysmal.
• Martin says he feels it’s important that we improve both penetration and speed. Walt is not letting him off that easy, jumping back in to point out that not only do broadband speeds in the states stink, but that we also pay as much as four times what people in other countries pay for better, faster broadband.

• Martin says we need a new and better definition for broadband.
• Kara asks about the political side to this issue. Should we treat broadband the same as we treat public highways? Martin says it’s something to consider, adding that we need to switch the system from a voice-grade one to a broadband-grade one. We should be subsidizing ONLY broadband services, not voice. (Hmm. Haven’t we subsidized them enough already? To the tune of $200 billion. See Nothing That a Two-Tiered Internet Couldn’t Fix, Right?)
• McAdam jumps in, noting the barriers that are delaying forward movement here. Martin parries, claiming that the FCC is working actively to remove these barriers.
• Walt asks if Martin has the statutory authority to streamline this process. Martin says he doesn’t know. Decisions like these are all in court right now.
• McAdam says there’s a tendency to think that carriers don’t want to deploy better services. We do, he says, but often, we’re held up by local government, which doesn’t like the location we’ve chosen for a tower, and whatnot.
• Moving on to spectrum auction and open access, Martin says open access is important, and that he’s heard that from not just entrepreneurs, but consumers as well. Martin talks about the open-access provision placed on the spectrum Verizon just won at the recent 700 MHz auction. Many advances this year: Sprint divesting spectrum to Clearwire. T-Mobile (DT) opening up, etc. “There’s been a significant change in the wireless industry just this year,” says Martin. “It’s embracing openness.”
• Kara asks if this isn’t in part due to Google and its efforts in the auction. McAdam: “Well, let’s not give them too much credit …” (Apparently, open access was really Verizon’s idea …)
• McAdam says Verizon has fully open devices in its labs right now. Walt asks when we’ll see them. McAdam: A few weeks. Walt asks why these devices are in Verzion’s lab at all. McAdam says Verizon needs to make sure they work on its network and don’t impact its customers.
• Walt brings up the pricing issue. You’ll essentially be running two pricing systems: the company-store system, which subsidizes handset purchases made with a long-term contracts, and the open system. Will consumers who use non-Verizon phones on Verizon’s network get the same level of support as those who use Verizon-subsidized ones? Walt asks. McAdam says yes. There’s no reason not to do any differently.
• Moving on to termination fees, Walt mentions recent class-action suits against wireless carriers. How do you justify charging people $200 for canceling their contracts early? Apparently, McAdam doesn’t need to: “We don’t do that anymore.” Verizon says it now pro-rates its phone subsidies and also offers customers the option of purchasing phones at a higher price, without a subsidy.
• But isn’t the subsidy just an artifact, something you did to increase cellphone penetration? McAdam agrees that it is and says he’d dump subsidies tomorrow if Martin and Co. made them illegal.
• Martin’s take on this issue? He feels consumers should have a window during which they can cancel their contract without penalty. Enough time to evaluate the service … say, a month or so.
• What’s the impact of changing to a model like this? Martin notes that these subsidies extend to other platforms like cable, and need to be carefully thought out.
• Kara: What’s the most significant technology issue the FCC will face after the next election? Martin replies that the transition from analog to digital TV will certainly be among them. He talks about the need to educate the public about the transition. Walt notes that there’s an enormous amount of public confusion around this. Martin agrees, but says it will dissipate when the public has been better educated.
• Another big issue is Net neutrality, says Martin. Kara: Well, you know what this crowd thinks about that, don’t you? Martin deadpans, notes that the FCC does have complaints before it about the issue. The commission needs to address in a constructive way the right of the consumer to have unfettered access to the Net. That said, he adds, broadband providers do need to be able to manage their networks.
• Walt asks McAdam about Verizon’s EVDO service and if Verizon is concerned about AT&T’s claim that it can double the speed of its offering with a simple software change. Walt recalls that AT&T (T) once told him Verizon and other carriers like it are stuck because they committed to CDMA. McAdam dismisses such assertions, claiming that there are a whole host of issues at play here. Deployment, devices, etc. He seems to feel CDMA has quite a bit of road left ahead of it.
• Kara asks Martin about innovation. Martin says he’s been walking a very careful line between innovation and regulation: We need to encourage investment in infrastructure and innovation, he says, but we also need to ensure that its fruits are regulated in such a way that they remain in consumers’ best interest.
• Moving on to the audience Q&A … Question about misleading coverage maps. McAdam notes that every carrier has a different metric for what constitutes wireless coverage. He’d love for there to be a standard that everyone can agree to, so that carriers could offer accurate coverage maps.
• Q: Shouldn’t fees for open-access customers be cheaper since they don’t require carriers to offer subsidies? McAdam says he’ll let the market decide that.

For more coverage, see The Wall Street Journal.

A note about our coverage: This live blog is not an official transcript of the conversation that occurred onstage. Rather, it is a compilation of quotes, paraphrased statements and ad-lib observations expeditiously written and posted to the Web as quickly as we were able. It was not intended as a transcript and should not be interpreted as one.

Digital Cameras

Megapixels: This term describes the highest resolution photo a camera can take. Often mistaken as the most important factor in a digital camera, a high megapixel count — such as 10MP or more — isn’t necessary for the average user unless he or she plans on heavily editing or enlarging photos. Most new digicams offer between five and eight megapixels, which is usually more than enough.

Optical or Digital Zoom: Optical zoom, determined by the physical movement of a lens, matters much more than digital zoom, which digitally alters an image using the camera’s internal computer. Camera companies still try to confuse potential buyers by listing a camera’s total zoom, or the optical and digital zooms multiplied together. Ignore total zoom numbers and instead focus on optical, which now averages around 5x for many new cameras.

Image Stabilization: When generously sized LCD viewing screens started replacing optical viewfinders, they also forced users to hold their cameras at arm’s length, making for plenty of blurry photographs. To remedy this, camera manufacturers have added image stabilization, tools once found only in high-end SLR models. Optical (also called “mechanical”) and digital image stabilization correct for unsteady hands and moving subjects, respectively. Cameras with both types advertise dual image stabilization, which corrects for both situations and costs more.

Mobile Devices

HSDPA and EVDO: HSDPA, or High Speed Downlink Packet Access, is the name for AT&T‘s 3G, or third generation, mobile network that operates at roughly the speed of a slower DSL in a home. HSDPA is available in most major metropolitan areas and is seen as the competitor to Verizon and Sprint’s EVDO (Evolution Data Only) networks, though the popular iPhone runs on AT&T’s network using Wi-Fi and EDGE technology rather than HSDPA.

Multi-Touch Technology: Most popularly found on Apple’s iPhone and iPod touch, multi-touch is starting to show up in other products, such as in Microsoft‘s Surface, a coffee-table-like computer. Rather than just responding to on-screen touches, this technology enables moving, resizing and zooming pictures and Web pages using one or more fingers simultaneously. Look for many more devices — mobile and otherwise — to incorporate multi-touch in the future.

GPS: Global Positioning Systems are most often found in cars — either built-in or on portable devices from companies like Garmin and TomTom. These gadgets use satellite technology to determine geographic location, and high-end models even display Web content like news and weather along with directions. GPS integration in mobile devices can be used to plot routes in cars, can help users find nearby businesses while on the go and can link friends by showing one where the other is located and what they’re doing.

Digital Music

DRM: Digital rights management is a set of standards that protect the intellectual property rights of online content like music and videos, preventing it from being illegally distributed across the Web. In the past year, Vivendi‘s Universal Music Group, Apple and (most recently) Sony BMG said they will start selling DRM-free versions of songs, often for a higher price. In Apple’s iTunes store, these files are called “iTunes Plus” and aren’t restricted like other iTunes content.

MP3: MP3 files are open, without any DRM restrictions. Files that you rip (copy) from your own CDs are usually converted into MP3s, though iTunes users can automatically rip tracks into that program’s special format, called AAC. MP3 files can be uploaded to social-networking sites for sharing with friends and online communities.

These file types are protected by rights that tie them to specific players. Generally, AAC files make up the majority of tracks sold on Apple’s iTunes store and play only on Apple’s iPods; WMA files are Microsoft’s version of proprietary files.

Wi-Fi

The popularity of Wireless Fidelity, or Wi-Fi, brings this technology to more and more portable devices like the iPod Touch and Microsoft Zune and gives companies good reason to incorporate Wi-Fi receivers in new computers — laptops and desktops alike. While available in many flavors, different letters like b, g, a and n stand behind Wi-Fi’s more technical name, 802.11, to help discern one version from another according to characteristics like speed and compatibility. The latest version, “n,” offers the greatest range and speed, and “n” devices are usually compatible with earlier versions.

Televisions

HDTV: High-definition television has now become the standard, capable of displaying vastly better pictures, provided the source is also HD. Today’s more popular flat panel HD televisions are LCDs, or liquid crystal displays, though plasmas still hold their own. Recording HD content can’t be done with a regular digital video recorder; instead, a special HD recorder is required to capture this higher quality content.

480p vs. 1080i vs. 720p vs. 1080p: These numbers refer to the resolution, or sharpness, of a digital display, while “p” stands for progressive and “i” stands for interlaced. A resolution of 480p, known as EDTV or Enhanced Definition TV, is found most often in low-end plasmas or LCD screens. A TV with a resolution of 1080p is currently considered the Holy Grail, and costs the most. But 1080p pictures usually can’t be distinguished from less expensive 1080i or 720p pictures by average viewers at the typical distances from which most folks watch TV.

Blu-ray vs. HD DVD: Blu-ray and HD DVD are incompatible high-definition disc formats that continue to fight a seemingly endless battle to replace the DVD. The Blu-ray camp is led by Sony and the HD DVD camp is led by Toshiba. The two formats aren’t so different, technically speaking, but their very existence is confusing to consumers. The recent decision made by Time Warner‘s Warner Bros. to use Blu-ray gives Sony’s side a boost, and now Viacom‘s Paramount is rumored to be switching to Blu-ray from HD DVD. Dual-format players from Samsung and LG offer some solace.

Email: mossbergsolution@wsj.com

“After extensive review, DHS [Department of Homeland Security] has advised that it does not believe there are public-safety risks sufficient to justify disapproval of the USITC’s limited exclusion order,” U.S. Trade Representative Susan Schwab wrote in her decision. “DHS has also advised that Broadcom Corporation’s offer of royalty-free public-safety licensing to state and local public safety organizations and its licensing agreements with two major wireless carriers will ameliorate to a significant degree concerns regarding the order’s potential effect on public-safety wireless broadband systems and 3G network deployment. We also understand that other market participants are investigating the use of a noninfringing software workaround. We believe that such licensing agreements and workarounds will address in large part the concerns raised about delay in 3G network deployment.”

Quite a nasty turn of events for Qualcomm. The company had lobbied–fiercely–for White House intervention to reverse the ITC ruling, arguing that allowing it to remain would harm consumers, telecom carriers and handset makers. But the administration apparently didn’t buy it, and without the sort of deus ex machina it could have offered, Qualcomm is nearly out of options. It is facing an immediate ban on all forthcoming handsets running its WCDMA and EVDO chips–a potentially devastating blow to the company’s hugely important chip IP licensing business.

“If I’m one of Qualcomm’s customers, I’m furious,” Gartner analyst Michael King told the Associated Press. “My product line has the potential to be disrupted. The merits of the case notwithstanding, the fact they let it get this far is going to be somewhat unconscionable to their customers.”

Qualcomm, which is working on a software workaround to avoid any infringement on the Broadcom technology in question, is pursuing a stay of the ITC ban. Third time’s a charm, right?

This year, that tower of babble is higher than ever, as new terms have come into being, and old ones have come to the fore. So, here’s a quick glossary of some of the current techno terms you may encounter when shopping for a computer, television, digital camera or cellphone this holiday season.

Aero: This is the graphical user interface that’s a key part of Microsoft’s new Windows Vista operating system, due out around Jan. 30. If you want to get the full benefit of Vista, make sure any Windows PC you buy this season is capable of running Aero. Many are not.

Antiblur: Also known as antishake or image stabilization, this is a crucial feature of digital cameras today. Because few cameras have optical viewfinders, users tend to hold them at arm’s length to frame the shot on the LCD screen. This increases the likelihood of shaking the camera. An anti-blur feature can correct that. The best antiblur technology is optical. Digital versions are less effective.

Draft N: This is a new, faster, longer-range version of the popular Wi-Fi wireless networking system, and many new Wi-Fi products are built to comply with it. It succeeds the common “G” flavor of Wi-Fi. But, there’s a catch. As the name implies, this technology is based on a draft of the forthcoming new Wi-Fi standard, to be called “N.” And the final standard could be different enough to make Draft N gear outdated in 12 to 18 months.

Dual Boot: A computer that is configured to boot, or to start up, in two different operating systems, depending on which the user chooses at any one time. The most important example of this currently is on Apple’s Macintosh computers, which now can be set up to run either the Mac operating system or Microsoft Windows using Apple’s free dual-boot software, called Boot Camp.

Dual Core: A type of microprocessor — the brain that runs a computer — which packs the equivalent of two processors into a single chip. The best known dual-core processors in consumer computers are Intel’s Core 2 Duo and Core Duo, but rival AMD also makes them. They are a good bet for most people.

Flash Player: A small-capacity digital music player, like Apple’s iPod Nano and Shuffle. These players use flash memory, a type of memory chip that behaves like a small hard disk to store music, photos and videos. Larger players, such as the full-size iPod and the new Microsoft Zune, use actual hard disks, like the ones in computers. Flash memory is also what’s inside the small memory cards used in digital cameras.

HDMI: This acronym, for High-Definition Multimedia Interface, describes a new kind of cable for hooking high-definition TVs to things like cable boxes and DVD players. It provides a high-quality digital feed, and combines both audio and video signals via a single connection. When shopping for an HDTV, make sure it has HDMI connectors on the back.

HSDPA: An awkward name for a new high-speed cellphone network being deployed in the U.S. by Cingular Wireless. Its full name is High Speed Downlink Packet Access, and it’s intended to compete with successful high-speed networks from Verizon and Sprint called EVDO, or Evolution Data Only. All of these new networks allow Internet access at about the speed of a slow home DSL line, which is a big boost for cellphones. If you care about email and Internet access on a phone, and you are using Cingular, get a phone that can handle HSDPA.

Quad Band: A cellphone that handles all four bands, or frequencies, used in various countries by wireless phone companies adhering to a world-wide standard called GSM. Examples are Cingular and T-Mobile in the U.S., and Vodafone and Orange in Europe. A quad-band phone can be used on any GSM network anywhere, so if you travel overseas a lot, you may want one.

RAW: A file format for digital photographs that is uncompressed and largely unmodified by the camera’s chips, and therefore includes every detail of the color and image. It is prized by professional photographers and serious amateurs, who look for cameras and photo software that can handle the RAW format. But it produces enormous files, so most users should ignore it and stick with the very good, very common compressed photo format, called JPEG or JPG.

Shared Memory: A computer configuration in which the video circuitry lacks its own dedicated memory and must share, or drain off, a portion of the computer’s main memory. This is common in lower-price computers. It’s fine, but it reduces the amount of memory available to the nonvideo functions of the computer, so you may want to add extra memory to a PC of this type.

WAN: Any wide-area network, such as a cellphone network, that can be used to send and receive data. It is distinguished from a LAN, or local area network, such as the wired and wireless networks deployed inside a business or home. Some computer makers use the term for the built-in cellphone modems in their laptops.

Good luck with your gift shopping. Don’t get trapped in the tower of babble.

Email me at mossberg@wsj.com.

And like the technologies themselves, digital jargon changes and expands all the time. Just when you thought you’d mastered stuff like RAM (computer memory) and GSM (the cellphone technology invented in Europe), new terms pop up like weeds on your lawn.

So here’s a quick and dirty glossary designed to make holiday shopping for the latest tech products feel less like taking the SATs.

Computers

Some of the newest terminology to know when you’re shopping for a computer, whether it be a Windows PC or an Apple Macintosh, involves the processor, the chip that’s the brain of the box. Until recently, most consumer computers had a single processor. Now it’s common to find them with so-called dual cores, which in effect means two processors packaged into one chip. Two cores won’t make your word processing or email go any faster, but they do potentially give you more horsepower for such heavy-duty tasks as gaming or video editing. I say “potentially,” because to make the most of a dual-core processor, you need software that sends some work to each core, and most programs are not yet designed to do that.

The labeling of these new processors is also confusing. Intel called its first consumer laptop dual-core chip the “Core Duo”; now there’s a second generation known as the “Core 2 Duo.” (In techland, apparently, the “2 Duo” moniker is assumed to be crystal clear.) And there are still some single-core Intel processors, dubbed “Core Solo.”

For laptops in general, one of the latest terms you’ll encounter is “ExpressCard,” which refers to the new version of that slot on the side of the machine into which you can pop a wireless receiver or some other add-on. For years these slots have adhered to a standard called “PC Card,” but the latest laptops are showing up with slots that follow the new ExpressCard standard. Worse yet for confused consumers, it comes in two flavors: a narrower one called ExpressCard/34, and a wider one called ExpressCard/54. And naturally, neither can accept cards designed for the older, PC Card standard.

Cellphones

One hardly knows where to begin when talking about cellphone jargon. But an obvious source of confusion is the baffling nomenclature being given to the various new high-speed cellphone networks that can transmit a wide assortment of material — music, video clips and web sites — to phones at speeds rivaling home broadband.

If you’re shopping for a phone at Verizon or Sprint, the high-speed capability is called “EVDO” or “EV-DO” (which stands for Evolution Data Only or Evolution Data Optimized). At Cingular, it’s known as “HSDPA” (for High-Speed Downlink Packet Access).

Since T-Mobile doesn’t have a network in this speed class, salespeople there will brag instead about “EDGE” (Enhanced Data Rates for Global Evolution), which, despite its aspirational name, is a much slower technology.

TV

Buying a television used to be simple. No more. There’s a whole new vocabulary for digital TV shopping. It’s too expansive to cover completely in this space, but here are a few select terms.

In addition to the familiar plasma and LCD (liquid crystal display) sets, which have an expensive digital panel at the front, there’s now a third type of screen, called a “microdisplay.” This is actually a rear-projection television, although much skinnier than the old behemoths. There are three main microdisplay types. Each uses a different sort of very small digital circuit in the rear of the set to generate the picture, which is then projected onto the large screen at the front. And naturally, each has its own jargony name. The first, called “DLP” (digital light processing), uses a special chip loaded with minuscule mirrors. The second, confusingly called “LCD,” uses a tiny LCD chip. The third, “LCoS” (liquid crystal on silicon), is sort of a hybrid of the other two, in that it uses both liquid crystals and mirrors.

And don’t forget the digital video recorder — the now almost mandatory add-on used to record and save programs on hard disks inside cable and satellite receivers or inside a stand-alone unit — which unfortunately goes by two names. Sometimes it’s called a “DVR” (digital video recorder) and sometimes a “PVR” (personal video recorder), but really, they’re the same thing. You might even hear the technology referred to as “TiVo,” which is actually the best-known brand of digital video recorder. Think of TiVo as the Kleenex of DVRs — its name is sometimes used as a generic term for the whole category.

Wireless

Wi-Fi wireless networks are now pretty familiar. Many people even know they come in two main speeds, designated by letters. The “b” variety, which was the first version to gain public acceptance, was succeeded by the “g” variety, which is faster and backwards-compatible with “b.”

Nice and simple, right? Not for long. Chaos has come to the Wi-Fi world in the form of a new standard,”n,” which is supposedly even faster than “g” and, more important, offers longer range. The problem is, the engineering committee that sets such standards has been taking forever to certify “n,” so companies have begun selling Wi-Fi gear that purports to use the “n” standard in some form but may not be compatible with it when it finally emerges. Last year there were “pre-n” products, which used some parts of the emerging standard; this year there are “draft-n” products, based on a draft of the proposed “n” standard. Stay tuned for the real thing.

But the most important Wi-Fi term of the moment is “MIMO,” short for multiple-input multiple-output. This is a technique that can greatly improve range and speed by capturing formerly stray parts of a wireless signal and merging them. It is expected to be a key component of the “n” standard, but is already in some “g” products, as well as in the “pre-n” and “draft-n” products.

Broadband

There are two main types of high-speed Internet service: DSL (digital subscriber line) is sold by phone companies, while cable modem service is sold by cable companies. Most people know these terms.

But now there’s a third type, called “fiber optic,” being sold in some parts of the country. This technology uses glass fibers, lit up by a laser and connected directly to your home. (Some other systems use fiber under the street, but not running right up to the house.) The best-known brand of fiber-to-the-home broadband service is Verizon’s “FiOS,” which can deliver TV channels as well as the Internet.

All broadband service providers boast about their speed, and they tend to do so in techie jargon. Slower broadband is measured in kilobits per second, abbreviated as “kbps.” Faster speeds are clocked as megabits per second, or “mbps.” (Note that these terms end in bit, not byte. The latter ending is normally used as a measure of storage capacity, not speed.) One megabit equals 1,000 kilobits. So a DSL line that tops out at 768 kilobits per second, for example, isn’t nearly as fast as one that registers three megabits per second.

Music

Almost everybody knows that MP3 (MPEG-1 Audio Layer 3) is the most common format for digital music files. But what is AAC? And how about WMA?

All of the above are compressed formats, meaning they take a song that would occupy lots of space on a disk and squeeze it down to a fraction of its original size while trying to preserve the sound. AAC (Advanced Audio Coding) is an industry-standard music-compression format favored by Apple, while WMA (Windows Media Audio) is a proprietary music-compression format that is owned and used by Microsoft. Which of the three you prefer depends on your taste.

Both AAC and WMA are available in two versions. One is an “open” version, which gets created when consumers convert their CDs into these digital formats, and imposes no restrictions on usage. The second is an encrypted, or copy-protected, version, which includes code that restricts how often and under what circumstances the song can be played or copied. Songs sold at Apple’s iTunes Music Store are in the encrypted version of AAC, while songs sold by music services that use Microsoft software are sold in the encrypted version of WMA, meaning there are limits to what you can do with these files.

Here are a few questions about computers I’ve received recently from people like you, and my answers. I have edited and restated the questions a bit, for readability. This week my mailbox contained questions about Cingular data networks, the quality of Compaq laptops and options for connecting an iPod to home speakers.

In your review of the new T-Mobile BlackBerry Pearl, you said Cingular Wireless has a data network that is much faster than the EDGE network that T-Mobile uses. But I have a BlackBerry from Cingular and it, too, uses EDGE. So how is Cingular faster?

In 80 cities, Cingular has now rolled out a new network based on a technology called HSDPA that, in my tests, can be 10 times as fast as EDGE. However, most of its phones and digital devices haven’t been updated in new versions that can use the new, faster network. So far, only a few regular phones and laptop data cards from Cingular can use HSDPA. Its data-centric hand-helds, like BlackBerrys and Treos, are still stuck on EDGE, which Cingular continues to maintain alongside the new faster network.

But Cingular plans to offer new versions of the data devices in the coming months that can take advantage of the new, higher speeds. By contrast, T-Mobile has nothing faster than EDGE. Verizon Wireless and Sprint also have networks that are much faster than EDGE, based on a technology called EVDO. They are way ahead of Cingular in both the number of cities deployed and in the variety of devices that can use the highest speeds. For instance, the Verizon Treo I carry uses EVDO and can download Web pages and email attachments much more quickly than any EDGE device can.

There is a catch. With Verizon, Sprint and Cingular, even if your phone or data device can use the highest-speed networks the carriers offer, they will drop down to a lower-speed network if you enter an area where the higher-speed coverage isn’t available.

I bought a Compaq laptop in January 2005. Now in August it will not turn on. Naturally I only had a one-year warranty. The Geek Squad tells me I need a mother board, and that will cost more than a new laptop. Does Compaq have a history of only lasting a little over a year, or did I get a lemon?

Neither my email from readers nor anything I have read suggests that Compaq computers typically last only a year or so. However, reader surveys published by Consumer Reports and PC Magazine rank the Compaq brand (which is now owned by Hewlett-Packard) at or near the bottom in categories like how often its laptops need repairs and how reliable they are.

In general, I believe that as the factories in China (where nearly all laptops are made) jam more powerful and numerous components into slender laptops, quality and reliability are falling. Even Apple, which ranks at or near the top on the surveys I mentioned, is having problems with some of its newest laptops (and I am not referring here to the burning batteries Apple and Dell purchased from Sony).

Are there any good, effective options for getting an Apple iPod to work with a home speaker system? I guess I’m envisioning a “receiver” that allows an iPod to dock with it.

There are lots of products on the market that allow you to connect an iPod to a home audio system, or even just speakers. They range from simple audio cables you can buy at Radio Shack to iPod docks that connect to speakers or an audio receiver, and even wireless approaches. Apple itself makes a $19 cable and a $39 dock for this purpose and also sells a complete kit, with dock, cables and remote, for $99. But other companies sell similar products as well as self-contained docks.

There are way too many of these to list here, but there are some Web sites that can help you. Apple has a Web page listing some accessories, at www.apple.com/ipod/accessories.html. More are listed at Apple’s online store, at store.apple.com, under iPod Accessories — “Cables & Docks.” Another good source for information about this topic is ilounge.com.

* * *

Because of the volume of email I receive, I can’t routinely answer individual questions by email, or consult on individual problems or purchasing decisions. I read all questions I receive and select three each week to answer in the column.

Write to Walter S. Mossberg at mossberg@wsj.com

And the cellular broadband services, such as Verizon Wireless’s BroadbandAccess, can operate at speeds roughly equivalent to, and sometimes well beyond, the speed of basic wired home DSL service. That means you can surf the Web, and get email and large attachments pretty efficiently.

The card for the Verizon network

A small percentage of users hook up to these cellular broadband networks using laptops that have the necessary gear built in. Another small group uses a cellphone as a modem. But most users of these networks use external cellular-modem cards that plug into a standard slot on the side of their laptops. Therein lies a problem.

The computer industry is in the process of dumping that standard slot, called a PC Card slot, for a new, incompatible slot called ExpressCard. So, buyers of many new laptops are finding their cellphone modems are obsolete.

Now, Novatel, a leading maker of these cards, has come out with a couple of new ExpressCard versions for cellular broadband networks. One, which works on Verizon Wireless’s network, is already on the market, sold by Verizon and by Dell. The second, which works on Cingular’s BroadbandConnect high-speed network, will go on sale from Dell and possibly Cingular later this year, likely late November.

I have been testing the Verizon version of the card, called the V640, as well as a pre-release model of the version that works with Cingular, which Novatel calls the Merlin XU870. The tests not only gave me a chance to evaluate the cards themselves, but also to compare the Verizon and Cingular high-speed networks.

My verdict: The cards were easy to set up and use, and worked well. But the two high-speed networks are very different. While Cingular gave me higher speeds than Verizon in a couple of locations, the Verizon Wireless BroadbandAccess network crushed Cingular’s BroadbandConnect in most places I compared them.

This wasn’t a rigorous scientific test. I used two different laptops, an Apple MacBook Pro and a Dell Latitude D820. The Cingular tests were all conducted on the Dell, because the Mac software for the Cingular card won’t be ready until the card goes on sale. The Verizon tests were all conducted on the Mac. On both machines, I used the test service at speakeasy.net, accessed via the Firefox Web browser.

Also, I tested the cards in only Washington and New York City, and on Amtrak’s Acela Express trains in between. That is a heavily populated region; it’s also Verizon’s home territory, and Cingular might have done better in other parts of the country. Verizon has been rolling out its high-speed network since 2003; Cingular is well behind. Verizon offers the service in 185 metro areas; Cingular is in just 75.

Both cellphone carriers charge $60 a month for unlimited data service using the cards, if you have a voice plan with them. The new Verizon card costs $180. The new Cingular-compatible card is likely to cost $50 more.

The cards look nearly identical, and each works on both Windows and Macintosh computers. On Windows, you must connect using special software. On the Mac, you can simply use integrated software from Apple, if you choose. Both cards have small flip-up antennas and indicator lights. Both worked fine.

Verizon’s high-speed service is often called EVDO, for its underlying technology. Cingular’s service uses a technology called HSDPA.

In my tests, which involved about 20 head-to-head comparisons, the Verizon card and network averaged 818 kilobits per second “downstream” (to get Web pages, and to receive email and attachments) and 113 kbps “upstream” (to send email and files).

By contrast, the Cingular-compatible card averaged just 463 kbps downstream and 77 kbps upstream. Plus, during the three-hour train trip, Cingular disconnected me, or simply had no coverage at all, eight times. Verizon did so only once. Verizon has a deal with Amtrak that supplies data service inside the trains, which helped, but this in-train signal doesn’t include the high-speed EVDO service.

Cingular did beat Verizon in two places: my hotel in New York’s financial district and my office in downtown Washington. In the hotel, the Cingular service got a downstream speed of 1753 kbps — its highest in my tests — versus 888 kbps for Verizon and just 747 kbps for the hotel’s expensive wired Internet service. In my office, Cingular got 1133 kbps downstream versus 644 kbps for Verizon.

But the downstream speeds varied wildly. In Trenton, N.J., the Cingular service managed just 16 kbps. The best for Verizon was 1366 kbps in New York’s Penn Station, while its worst was 132 kbps between big cities in New Jersey.

I recommend both new cards. But unless you live, work and travel in very strong Cingular coverage areas, Verizon is the better choice for high-speed wireless data, at least today.

Email me at mossberg@wsj.com.

The Finnish cellphone giant is introducing a phone called the E62 that resembles, and is aimed at, the Palm Treo, the latest BlackBerry phones from Research In Motion and the Motorola Q.

Nokia’s E62

Like those other smart phones, the E62 has a full keyboard and is actually a little computer that is meant to be a serious email device as well as a phone. Like the Q and the Treo, it can play music and videos, surf the Web, and display photos.

Unlike the Treo and the Q, however, the Nokia E62 can run a service licensed by RIM that allows it to behave like a BlackBerry. It can send and receive email using either a corporate BlackBerry server or a consumer BlackBerry service offered by a cellphone carrier.

I’ve been testing the E62 and I like it. It’s fairly utilitarian-looking and won’t likely become an object of desire like the Q and the Treo. But it gets the job done and may well be the best bargain in its category.

In the past, Nokia has relied on a smart-phone design that was a thick, long device that flipped open to reveal a wide, horizontally aligned keyboard and screen. That design sold OK in Europe but flopped in the U.S. Now, with the E62, Nokia is adopting the American-type design pioneered by the BlackBerry and used by the Treo and the Q.

Nokia is being coy about the timing, pricing and wireless carrier for the E62. But I expect it to be available late next month from Cingular Wireless. And I expect it to cost even less than the Q, which at $199 is the least expensive product in this group. The latest Treo models, the 700p and 700w, are being sold by Verizon Wireless for $299 right now, after rebates.

The E62 works on the so-called GSM cellphone standard that’s universal in Europe, and used by Cingular and T-Mobile in the U.S. This means it can be used in both America and Europe, as well as in some other countries. The Treo 700 models, sold by Verizon and Sprint, and the Q, sold only by Verizon, use an American technology called CDMA that doesn’t work in Europe or in most places outside the U.S.

However, that GSM technology also saddles the E62 with its biggest drawback: It is much slower at receiving data such as email and Web pages than the Q or the Treo 700, or even certain BlackBerry models. That’s because it uses EDGE, a GSM variant that has been blown away by a technology called EVDO used by the Treo 700 and the Q. In my tests, EVDO has been up to seven times as fast as EDGE.

The E62 also lacks a camera, unlike the Q and the Treo 700. But, like them, it has Bluetooth wireless technology.

Nokia has built in a sharp, vivid screen with a resolution of 320 by 240. That’s better than the resolution on the Treo 700w and identical to the Q’s screen resolution — but inferior to the resolution on the Treo 700p.

The new Nokia is a bit larger than the Q — wider, thicker, longer and heavier. But it’s thinner and lighter than the Treo 700, albeit a bit wider and longer.

In my tests, the voice quality of the E62 was very good. Battery life was decent, with a talk time of between four and 5.5 hours. The phone accepts memory cards for storage of files and applications.

The BlackBerry Connect service and software, likely to cost around $45 a month, worked well. After I installed the BlackBerry software on the new Nokia and configured the service on the E62 and on an accompanying Web site, the service “pushed” all emails from my regular account to the E62 reliably. There’s no limit to how much email you can receive, though the carrier may intervene if it believes you are abusing the service.

The only downside of the BlackBerry Connect feature is that there’s a noticeable latency when you open an email before it displays on the screen.

In my tests, the N62 could open most major email attachment types, including Word documents, Excel spreadsheets and Adobe PDF files. It’s also supposed to work with PowerPoint presentations, but in my tests, this function failed.

The user interface on the E62 isn’t nearly as fast or slick as on the Palm operating system used by the Treo 700p. But I preferred it slightly over the Windows Mobile operating system used on the Treo 700w and some other smart phones. There were still too many menus and extra steps compared with the Palm system, but at least you can delete an email with one click. Turning on the speaker phone was also quick and easy.

I was able to synchronize the E62 with Microsoft Outlook, and bring over my contacts and calendar, using the separate Windows software that comes with the phone. And I was able to load up the memory card with pictures and songs from my computer and use them successfully on the E62.

All in all, the E62 is a solid and inexpensive smart phone.

• Email me at mossberg@wsj.com.

Here are a few questions about computers I’ve received recently from people like you, and my answers. I have edited and restated the questions a bit, for readability. This week my mailbox contained questions about waiting for the new Mac OS, using an iPod with an old version of Windows and getting broadband in rural areas.

I am planning to replace my aging Dell desktop with one of Apple’s iMac machines. Now that Apple has announced that the new OS X Leopard will be released next spring, is it advisable to wait for Leopard’s release to buy a new iMac? Or will the current iMac be able to run Leopard when it is released?

If history is any guide, an iMac you purchase now, or in the next few months, should easily be able to handle Leopard, which is the sixth version of Apple’s Mac OS X to be released since 2001. Since Apple upgrades its operating system far more often than Microsoft does, the upgrades tend to require less of a jump in hardware capability. (Microsoft’s forthcoming new version of Windows called Vista, due in January 2007, is the first major overhaul of Windows since 2001.)

However, Apple hasn’t promised that every new feature of Leopard will run on any iMac sold now, and the company has coldly cut off users of older models in the past. So, if you can wait, do so. It’s always better to buy new machines with a new OS preinstalled, even though Apple’s OS upgrade process has generally been much quicker and more reliable than Microsoft’s. Another benefit: Apple typically charges existing users $129 for an upgraded OS, even if their machines are only, say, six months old. But new Macs next spring will include Leopard free of charge.

Even if you can’t wait until spring (you said your Dell was “aging”), consider waiting a few months to see if Apple brings out a new iMac with Intel’s latest processor, the Core 2 Duo, which is faster and more efficient than the Core Duo in current iMacs. I have no information that this will happen, but you should know by November or so.

I’ve got a new iPod I want to use with my Dell Dimension 4100 running Windows Me, but the iTunes software will apparently run only on XP or 2000. What’s my best bet for software to load files onto my iPod?

Try a product called XPlay 2, by Mediafour. It is specifically designed to work with older versions of Windows, including Windows Me. It costs $30 and can be downloaded at mediafour.com/products/xplay/. There is a free trial, but it is limited.

We live on a dirt road in rural Virginia with no cable and can’t get DSL. How can we get broadband? We would prefer not to do a satellite connection because you still need a phone modem to send material. Is there some kind of fast wireless connection we could get from our PC to our ISP? I see laptops with wireless antennas sticking out of them around here and they must transmit to somewhere.

Satellite Internet access has improved, and no longer requires a dial-up modem for the return path — in fact no use of the phone line is needed at all. Of course, as with any satellite service, your house must have a clear line of sight to the area of the sky where the particular satellite you use is situated. For more information, see www.hughesnet.com.

Another option, if you have good cellphone coverage, is a broadband cell-phone modem. It uses the cellphone network to connect you to the Internet at speeds roughly comparable with a slow home DSL line — which is still much, much faster than your current dial-up connection. This is probably what all those laptops with antennas are using.

These cellphone modems, using a technology called EVDO, are offered by Verizon and Sprint, and Cingular is slowly building a similar wireless broadband capability. For more information, see the Web sites of the phone carriers.

In some parts of the country, but not Virginia, a company called Clearwire is offering wireless broadband to rural homes.

* * *

Because of the volume of email I receive, I can’t routinely answer individual questions by email, or consult on individual problems or purchasing decisions. I read all questions I receive and select three each week to answer in the column.

Write to Walter S. Mossberg at mossberg@wsj.com

The Sidekick, built for T-Mobile by Sharp Electronics Corp., doesn’t look like most common hand-helds, such as the Palm Treo or RIM BlackBerry, which are designed with a screen and keyboard lined up under one another for convenient emailing, phone use and Web browsing. Instead, the Sidekick is meant to be held horizontally and its screen must be twisted out with a dramatic, eye-catching snap in order to use its hidden keyboard underneath. In closed-keyboard position, the device can be held up to your ear vertically to use as a phone.

This week, we tested the latest version of this trendy hand-held, the Sidekick 3. It will officially launch July 10 for $300 with a two-year contract from T-Mobile USA Inc., but is available just for current T-Mobile customers starting today for 12 days.

Testing the Glam Factor

The last edition of the Sidekick — Sidekick 2 — came out almost two years ago, and plenty of improvements have been made in this product category since then, so we were expecting exciting new things from this third edition. We had fun testing the glam factor of the Sidekick 3 this week, using it in clubs, bars and taxicabs with extra screen-twisting snaps just for effect. But while our new gadget earned plenty of approving glances from those in the know, the Sidekick 3 isn’t all it could be.

The Sidekick 3′s most distinctive feature is its flip-out screen, but you can’t dial phone numbers with the screen closed.

Its new design is slightly more tapered than the chunky Sidekick 2, but that’s not saying much. Compared with the 0.45-inch thickness of the recently introduced Motorola Q, the Sidekick 3′s 0.86-inch depth isn’t anything remarkable. The more physically comparable Palm Treo 700p is 0.9 inches deep, but the Sidekick 3′s overall length outstretches the Treo by almost an inch, making it appear larger overall.

The Sidekick 3′s screen is generously sized at 2.62 inches diagonal, due in part to its horizontal layout. But the screen’s resolution is the same as it was on the Sidekick 2: a mushy 240×160 pixels. Compared with screens on other devices that offer greater sharpness and brighter colors, the Sidekick 3′s screen is a definite downer.

While many of the latest smartphones use high-speed EV-DO data networks for zippy Web browsing, the Sidekick 3 only uses EDGE — a much slower technology. When we tried to pull up articles about the World Cup, it took us at least 30 or 40 seconds to load each Web site.

New Trackball

Four navigation buttons that dot each of the screen’s corners make it easy to get around to different areas on this device. We especially liked the Sidekick 3′s trackball, which replaced the Sidekick 2′s up/down wheel so as to enable scrolling in all four directions.

But we were disappointed and a little surprised that the Sidekick’s lousy phone function hasn’t been improved with this version. Because of this device’s flip-out screen, the keyboard and numeric keypad are hidden unless the screen is out. So you can’t dial a number with the screen closed. After opening the screen and dialing, you can flip the screen in again and hold the phone up to your ear, but this back-and-forth process is tiring.

You can call people in your Contacts list with the screen closed by selecting an icon on the screen, because you don’t need access to the keypad for that. But even this process is a bit clumsy compared with the speed-dial functions on standard cellphones.

A few more bells and whistles try to spice up the Sidekick 3. These include Bluetooth, a processor four times as fast as that of the Sidekick 2, and a 1.3-megapixel camera. We found the camera easy to use, and a special button positioned on the top right edge of our Sidekick 3 worked as an easy shortcut to use the camera on quick notice.

We easily emailed photos directly from our photo gallery, using the trackball and navigational buttons to pull up an email format before swinging the screen out to type an email address using the keyboard.

Instant messaging on the Sidekick 3 is well-done, as it was on the Sidekick 2. AOL Instant Messenger, MSN Messenger and Yahoo Messenger come with the device, and we chatted with friends on AIM with ease. The keyboard, though it’s hard to get to, is generously spread out and comfortable to use after typing messages for awhile.

The Sidekick 3 also has a built-in Mini-SD memory-card slot, but we had to call tech support to learn where it was located. This card slot is inconveniently located behind the back panel of the device, meaning you have to actually remove this panel — exposing the battery — in order to use the slot. For users who want to pop their memory cards in and out, this is a real hassle.

Cutesy Extras

If you’re desperate for cutesy extras, the Sidekick 3 is loaded with them. The trackball turns different colors to indicate waiting text messages, instant messages, email or voice mail, and a multitude of sounds chime from the device just for the fun of it. Seventeen cartoon icons come loaded onto the device for pairing up with the contacts in your address book if you don’t want to use an actual photo. Even the low-battery indicator on the Sidekick chimes in a way that sounds cute.

But at the end of the day, this device is still not up to par with its competitors. In social circles where it’s considered cool, it might be worth buying. And if you have a separate phone, you can use the Sidekick 3 as a data-only device, though that means paying for, and juggling, two gadgets.

But the Sidekick 3′s poor phone, low-resolution screen and covered keyboard design left us unimpressed, even if it might be trendy. Our advice? Impress your friends with technology that works better for you, the user.

• Email: MossbergSolution@wsj.com

I’ve been testing two new small and light laptops from these companies: the Sony Vaio SZ160, and the Lenovo ThinkPad X60s. Both weigh in at under four pounds, so they won’t break your back when you tote them on the road. But each has plenty of power, decent battery life and a rich set of features. And, despite their small size, these machines are capable of serious work, partly because both use Intel’s new Dual Core processor, which packs the equivalent of two processors into one.

I like both machines, but they have different benefits and downsides. The ThinkPad is the latest entry in a long line of small, rugged laptops with great keyboards and strong battery life. It has a speedy, optional, internal cellphone modem for connecting to the Internet over a cellphone network. But it lacks an internal optical (CD or DVD) drive.

At the cost of just a little more weight and size, the Sony I tested includes an optical drive and a bigger screen, but it lacks a cellphone modem and has weaker battery life than the Lenovo configuration I tested. For enhanced security, both laptops have built-in fingerprint readers that can bolster or replace typed passwords. Neither is a bargain-basement laptop. The Sony SZ series starts at $2,000, and the ThinkPad X60 series starts at $1,900. They come in many different configurations, and thus many different prices. The ThinkPad X60s I tested, which included a cellphone modem, an extra-strength battery and a dock with an optical drive, costs $2,300. The Sony SZ I tested, which didn’t include a dock, an extended battery or a cellphone modem — but did have that internal optical drive — costs $2,500.

The Lenovo ThinkPad X60s

The Thinkpad X60S I tested weighed 3.46 pounds, while my Sony SZ160 test model weighed just 3.72 pounds, even with the bigger screen and optical drive. The ThinkPad is 10.5 inches wide by 8.3 inches deep, and it’s between 0.8 inch and 1.11 inches thick. The Sony is 12.5 inches wide by 9.3 inches deep, and it’s between 0.9 inch and 1.3 inches thick. The Sony’s larger dimensions are mainly a result of its bigger screen — 13.3 inches, versus 12.1 inches for the Lenovo. The Sony screen is also higher resolution.

I put both laptops through my usual tough battery test, wherein I turn off all power-saving software, crank up the screen brightness to the max, turn on the wireless networking, and then play an endless loop of music.

My test ThinkPad, with its double-capacity battery, lasted a very impressive four hours and 49 minutes. In normal use, with power-saving turned on and a more typical work pattern, I’d expect it to last six hours or more, which is excellent. My test Sony, which had a normal-size battery, lasted just three hours and two minutes, even though the machine was running on its so-called Stamina setting. In normal use, the Sony would likely top four hours. Presumably, a Lenovo with a standard battery would do worse, and a Sony with an extended battery would do better.

Neither can match Apple when it comes to the quality of its built-in software. Lenovo’s is too geeky and is aimed more at corporate than consumer customers. Sony’s is more consumer-oriented, but it’s inconsistent and confusing.

The ThinkPad X60s, like its predecessors from IBM, is compact and rugged, with strong hinges and the best keyboard in any laptop. It has both built-in Wi-Fi wireless networking and a built-in cellphone modem that works on Verizon’s speedy EV-DO network.

My test machine worked well on all the typical computing tasks most people do, but there was one small defect in a Lenovo-supplied wireless software program that kept turning off the Wi-Fi. The company says this problem appeared only in early models like mine and has been fixed. Overall, the quality seemed as good as when IBM was making the machines.

The Sony Vaio SZ160

But the Thinkpad X series really should have an internal optical drive by now. When it was introduced, few ultra-small laptops had them, but since then Sony and others have figured out how to install optical drives in even smaller boxes.

The Sony SZ series is interesting because, while it’s not Sony’s smallest or lightest line, it packs a larger screen and an optical drive into a package that’s under four pounds. Like the Lenovo, it worked well at all typical tasks.

The SZ’s biggest innovation is that it has two graphics systems and the aforementioned “Stamina” mode, controlled by a switch, which allows you to use the weaker graphics hardware to save battery power. Its biggest downside is that its optional cellphone modem (available this summer in a pricier premium model I didn’t test) works on Cingular’s EDGE network, which is only about a seventh as fast as the Verizon network Lenovo uses.

You won’t go wrong with either of these well-designed laptops. For road warriors, they are worth their hefty price tags.

• Email me at mossberg@wsj.com.

But not anymore. Gradually, and with relatively little fanfare, Verizon Wireless has deployed a nationwide cellular data network in the United States that blows away the fastest widely deployed networks in Europe, the so-called 3G networks that have been rolled out there to huge publicity. And Sprint is starting its own rollout of a similar speedy network based on the same technology Verizon uses.

That technology is called EV-DO, for Evolution-Data Only, or Evolution-Data Optimized. It is the first wireless technology deployed over a wide area that matches the speed of home broadband — at least the slower reaches of that wired service.

Unlike the most common form of wireless broadband, Wi-Fi, the new EV-DO service doesn’t rely on hot spots. It’s available all over a metro area, wherever there is cell phone service — even in a moving car.

Verizon has been rolling out the new service, city by city, over the past year or so, and it is now available in 61 major metropolitan areas and 65 airports across the country, according to the company. Because it’s based on a technology called CDMA, developed by the U.S. company Qualcomm and not widely used in Europe, EV-DO has given the U.S. an edge, even if only for a while.

You can get the service in two ways. First, you can buy a data-enabled smart phone, like the $600 Samsung SCH-i730, which can handle e-mail, instant messaging and Web access over EV-DO. Or you can buy a wireless EV-DO modem card for your laptop, like the $170 Kyocera KPC650, which allows all your Internet-oriented PC software to access the Web via EV-DO.

There are also different rates. Verizon has been charging $80 a month for an unlimited EV-DO data plan. But recently, it cut that price to $50 a month for people who already have a Verizon voice calling plan.

For those with mainstream phones that are mainly designed for voice calling but are EV-DO capable, Verizon offers a $15-a-month plan that mostly covers viewing short video clips on an EV-DO service called V Cast, but also offers unlimited, albeit much clumsier, Internet access.

How fast is EV-DO? Verizon is predicting average speeds of between 400 and 700 kilobits per second. That’s up to 10 times its previous fastest data speed, on an older network called 1X. In my tests, Verizon’s promise proved realistic, and I often topped 700 kbps.

To put those speeds in perspective, many wired DSL plans in American homes operate at speeds of 700 kbps or less, so EV-DO is in the same ballpark.

There are faster wired broadband connections available, from both DSL and cable modem providers. Many homes with cable modems have service that runs at 3 megabits a second, or four times faster than EV-DO. And some Wi-Fi hot spots may operate at faster speeds as well, though that depends a lot on how they are set up. But EV-DO is clearly a broadband service, at least by the American definition of the word “broadband.” (In Asia, they laugh at our definition. They think of broadband as being 20 to 50 megabits per second.)

So how does it compare with similar services in Europe? European cell phone companies offer better phones, better coverage, and better features and options, in general, than do their American counterparts. But strictly measured on data speed in widely employed networks, they’ve lost their edge. Their high-speed wireless 3G technology peaks at 384 kbps, which is less than the minimum speeds Verizon is promising. And such peaks in any system are rare outside the lab. (EV-DO peaks at 2.4 megabits a second.) Actual throughput with European 3G networks averages 250 to 300 kilobits a second.

In my tests of EV-DO with a laptop card, I averaged 585 kbps. And with the Samsung EV-DO phone, I was able to achieve EV-DO speeds of up to 534 kilobits per second.

The U.S. edge won’t last forever. New generations of the technology used in Europe, to be rolled out in the next few years, will top EV-DO. But there are faster successors in the EV-DO line of technology as well, so Verizon (and Sprint, America’s other big CDMA carrier) have their own future weapons. It’s a battle that should continue, as rival technologies steal the lead back and forth in their quest for dominance.

How does EV-DO compare with Wi-Fi? I love Wi-Fi to death and use it in my home and office, at airports and coffee shops. Even if you have an EV-DO modem in your laptop, I recommend having Wi-Fi as well, especially since it can be faster, and it is treated by Windows and the Mac operating system as a network. EV-DO isn’t quite as seamless on laptops: It gets treated like a really fast dial-up modem call, and the required software is a bit clunky.

But Wi-Fi is limited to places with hot spots or transmitters, at least until citywide deployments become a reality. And using it on the road often means exorbitant short-term fees to a variety of network operators, fees that could each top the $50 a month Verizon is charging its voice plan customers for unlimited use of EV-DO.

By contrast, with EV-DO, you pay one fee to one carrier and can use it anywhere in a city. In my tests, I was able to connect in restaurants, parking lots and even moving cars. And unlike Wi-Fi, with EV-DO, if you leave a coverage area, you don’t get cut off. Verizon merely slows down your connection to the pace of the 1X network.

EV-DO may even find a place in the home, replacing a wired DSL line. If all you use are laptops with EV-DO cards and your home is covered by EV-DO service, then you have all you need for broadband at home. And several companies are working on home wireless base stations that would work with an EV-DO laptop card.

The downsides of using EV-DO at home are that it’s much costlier than wired DSL or cable service, which typically runs $15 to $45 a month, and slower than any wired broadband but the slowest DSL plans. In fact, I believe one reason Verizon has priced it relatively high compared with wired broadband is to discourage home use, which might overload its network.

But for frequent travelers who rely heavily on EV-DO on the road, it may make better sense to just use it at home instead of buying wired broadband service as well, unless of course you have family members who do most of their surfing at home.

So, true, unbounded wireless broadband has arrived in the U.S., if you live in the right place and can afford it. Now you don’t have to take guff from Europeans anymore — at least about wireless networks.

The standard BlackBerry hand-helds from Research In Motion make clunky phones, and the slimmer BlackBerry 7100, while an acceptable phone, lacks a full keyboard. The models using Microsoft’s hand-held software have either lacked keyboards altogether or been too large to make comfortable phones. In contrast, the Treo is both roomy enough to be a good hand-held email device and compact enough to be a good phone.

Starting today, Verizon Wireless will introduce in the U.S. the first Microsoft-based smart phone with a built-in keyboard that is about the same shape, size and weight as the Treo. This new phone, the $599 Samsung i730, has one major capability the $399 Treo lacks — the ability to surf the Web and to send and receive email at broadband speeds.

The new Samsung can operate at speeds roughly comparable to home digital subscriber line, or DSL, connections through Verizon’s wireless Broadband Access network, which works on a wireless technology called EVDO. Or it can use speedy Wi-Fi wireless networking at places like coffee shops and airports.

I don’t expect to see an EVDO-capable Treo until very late this year or early in 2006. And the Treo lacks Wi-Fi capability. So the Samsung is the fastest email and Web device with a built-in keyboard that is small enough to be used comfortably as a phone. It will be available starting today for corporate customers and will be in Verizon stores in a couple of weeks.

Samsung i730

I have been testing the new i730 and comparing it to the Treo 650 from Sprint that I carry as my own phone. The Samsung worked as promised for making voice calls, accessing Web sites, and sending and receiving emails. It also played music and videos and displayed photos, though unlike my Sprint Treo, the configuration Verizon sells lacks a camera.

In my tests, I was able to get on the Web with the i730 at speeds ranging from 220 kilobits a second to 534 kilobits a second, which is between three and eight times as fast as the Treo’s average speed of 70 kilobits a second. And that was on the Verizon EVDO network, which is available in most major U.S. cities. Using the phone’s Wi-Fi capability, in my home and at a hotel, I was able to push the speed to nearly 700 kbps.

There were some things about the i730 that drove me nuts compared with the Treo. It has much worse battery life. The Microsoft Pocket PC software it uses is much harder to navigate one-handed, as phones should be used, than the Palm software on the Treo. Even when doing simple tasks, i730 users will have to employ the stylus, and two hands, far more often than Treo users do.

Unlike the Treo, whose keyboard is always visible beneath a square screen, the i730′s keyboard is hidden beneath its rectangular screen and slides out for use. The keys are a little more widely spaced than the Treo’s, though they are flatter and less pronounced. I found typing on the i730 to be about as fast as on the Treo.

The new Samsung isn’t quite as small as the Treo, but it is close. With its keyboard tucked out of sight for making phone calls, it is slightly narrower than the Treo but slightly thicker and longer. It also weighs a bit more. However, when the Samsung’s keyboard is slid out for writing email, it becomes far longer. To dial a call without the keyboard extended, you have to use a virtual number pad on the screen.

The i730′s screen is larger, but it offers less resolution than the Treo’s. Both phones use a five-way navigation pad, four buttons for calling up various functions, and traditional red and green buttons for starting and ending phone calls.

The Samsung has 64 megabytes of memory, double the Treo’s internal capacity, though this is offset by the fact that its Microsoft software needs more memory than does the Treo’s Palm software. Both phones accept standard SD memory cards. I was able to pop the memory card from my Treo into the Samsung, and it played or displayed the music and photos I had stored there. Unlike the Treo, the Samsung has stereo speakers.

Like the Treo, the Samsung offers Bluetooth wireless networking, a short-range technology for use with some cars and wireless headphones and for synchronizing data with PCs.

In addition to its increased need for the stylus and two hands, the i730 has some other drawbacks. In my tests, its standard battery died in far less than a full day and far faster than my Treo’s battery, which typically lasts me for a whole day of moderate phone-call use and heavy email use.

You can’t use the Samsung’s Wi-Fi and cellphone capabilities at the same time, and it can’t hand off your Internet connection from one wireless technology to the other. And, unlike my Sprint Treo, the Verizon i730 can’t be used as a modem for a laptop. These limitations probably stem more from business decisions by Verizon than from technological limitations.

Finally, the i730 is $200 more than the Treo 650. But if you prefer Microsoft’s software to Palm’s or crave having wireless broadband in a phone, the Samsung i730 is a good choice.

Write to Walter S. Mossberg at walt.mossberg@wsj.com