First things first, for those emailing me frantically about getting into our D@CES onstage interview event later today at the Consumer Electronics Show in Las Vegas: We’re sold out and have a very long wait list.

That said, people in Sin City tend to flake out, so if you show up at the Marcello Ballroom at the Venetian Hotel at 3 pm, you might snag a seat, as people did last year at the same event.

No guarantees, but it’s a betting town, so you might want to do so.

And, if you throw craps, our crack All Things Digital staff will be posting photos, reports and video quickly.

I am hoping there will be some juicy news for them to chew on, as we interview three fascinating subjects:

Twitter CEO Dick Costolo, Nvidia co-founder and CEO Jen-Hsun Huang and Dean Hachamovitch, who heads the Internet Explorer browser team within the Windows unit at Microsoft.

Our latest event comes after our successful D: Dive Into Mobile conference, part of the D: All Things Digital juggernaut.

(Actually, it is more like a tiny red wagon, but it is really cool.)

This is our second D event at the CES, which is taking place this week.

Last year’s tech execs onstage were Palm CEO Jon Rubinstein, Netflix founder and CEO Reed Hastings and Google’s Android chief Andy Rubin.

As usual, our event will be focused on the consumer electronics arena, and the big trends impacting it.

The D@CES program is only this afternoon, with the new trio.

Costolo (pictured here), a longtime entrepreneur, took over from co-founder Evan Williams earlier this year and is charged with turning the microblogging service into a real, live boy, um, company.

Twitter is making a big push into the mainstream and also wants to be present for all the many devices shown at CES.

As noted before, I will be grilling Costolo. Well done, I hope!

Nvidia’s Huang (pictured here) is leading a big change for the company. Although known for its PC graphics chips, Nvidia is shifting an increasing amount of focus to other areas, such as mobile chips with its Tegra line.

Huang will be interviewed by Mobilized’s Ina Fried.

Walt Mossberg will take on Hachamovitch (pictured below), who heads the IE team at Microsoft.

Well known for sporting a different black shirt featuring a different saying made up of the IE logo and letters at every keynote speech, he has been at the software giant since 1990.

We thought bringing his voice was important, since Hachamovitch has been focusing on privacy using the browser, an increasingly key topic in tech.

So get ready for some fun–after all, it’s Vegas, baby.

Nvidia, which builds tiny computer processors to help devices display graphics, games, video and more on phones, will be found all over the show floor, demonstrating products in conjunction with wireless carriers, automotive makers, handset makers and others.

And for those looking for even more from Huang –and maybe a demo that works– he’ll be appearing on stage with my colleague Ina Fried at our own D at CES event on Friday.

The biggest partnership of all, however, was not announced–a rumored relationship with Microsoft that will likely be unveiled later today, Huang hinted. [Update: that news can be found here.]

What Nvidia was willing to talk about was its plans to build high-performance ARM-based CPU cores, designed to support future products ranging from personal computers and servers to workstations and supercomputers. Up until now, the project was code-named “Project Denver.”

However, Nvidia spent most of the time talking about its new Tegra 2 processor, which is designed to efficiently display Internet content and games–on par with the quality of a console–on a cellphone. That means a compact design that provides the same quality but helps preserve battery life.

Nvidia’s Huang demonstrated the capabilities of the chip with the help of LG, which made an appearance onstage to show off the new Optimus 2X, a new Android phone. Loaded with a Tegra 2, one of the head honchos from LG described the phone as “a beauty on the outside–a monster on the inside.”

Huang plugged the phone into a giant HDTV to demonstrate the chip’s capabilities. He played Angry Birds and navigated a few apps on the homescreen.

But one of the big pushes is in viewing Adobe Flash, and the demo gods were against them. The wireless network was slow, prompting Huang to ask the packed crowd of reporters to spare a bit of bandwidth for him.

“I feel like I am on 56K here,” Huang said. “Oh you guys suck,” he joked.

Huang said the company brought in technology to block others from hogging the bandwidth, but people were using it anyway. “You guys really suck,” he said to more laughs.

More demonstrations were made with videogames, and even other demos failed, including a video chat over Skype.

After it was all said and done, Nvidia served lunch.

CityVille is the perfect hospital waiting-room activity. You click to create buildings and plant crops, click to harvest them and collect money from your shops, click to visit your friends’ cities and help them do the same things.

Unlike in a real city, everything you can possibly accomplish in the game is good. You receive money, goods, reputation points, energy and random bonus prizes constantly.

Most of these are useful, but some of them are not. For instance, I currently have a stock of 22 virtual danishes received as bonuses from my in-game coffee shop, and no way to spend them.

Among the early adopter types I know in the tech industry, there’s a sense that casual gaming on Facebook serves an entirely different demographic from their own. The thinking is that games from Zynga and the like replace relatively mindless activities like watching soap operas.

But as someone who has just reorganized her virtual retail shops to be surrounded by virtual trees, so as to accumulate more virtual bonus points, I can see how social gaming–especially as it gets more social–might appeal to the desire for mindless diversions in all of us.

And, I began to get an answer to a question I am asked a lot: Why are so many people playing these seemingly meaningless games?

CityVille is Zynga’s latest attempt to extend the dominance of its breakout social game FarmVille, which has long been the most popular such diversion on Facebook.

Of all of Zynga’s games, CityVille has been heralded as the most social to date, with new features such as a franchise system that allows users to actually participate in the building of their friends’ cities. Personally, I’ve never gotten into FarmVille, although it’s obviously quite addictive as well and hugely popular.

Chalk it up to the new social features, the slightly less awkward and cutesy 3-D graphics, or a momentary openness to mindless diversion on my part, but CityVille is the only Facebook game that’s truly sucked me in so far.

Zynga says CityVille is its fastest-growing game ever. According to AppData, CityVille has 54 million monthly active users, for second place overall (and only two million behind FarmVille).

There are no consequences in CityVille and there is no strategy. There’s also no winning (rather, as in FarmVille, an endlessly extending horizon of tasks to complete).

The worst thing that can happen is a crop can wither or you can allocate your “energy” to collecting rent and not have enough to empty the cash registers at your stores.

But, not to worry–come back in five minutes and there’s another unit of energy waiting for you.

CityVille is satisfying on a superficial level that I hadn’t thought possible. It’s not even like Angry Birds, my former casual game of choice, which breaks all sorts of age and language barriers in its simplicity, but still requires you to position the slingshot correctly and think through the physics of the various projectiles.

In CityVille, all you do is click, click, click.

Zynga seems to want three things from users: Their time, their money and their recruitment of their friends. As for time, I’ve given plenty of it, although you usually run out of stuff to do about 15 minutes into any one session (Zynga wouldn’t want game play to be a burden or feel too complicated).

But I’m not sure my obsession is paying off for Zynga. I’ve spent a grand total of 50 cents on the game. That’s because I wanted to spend the 15 Facebook credits I’d gotten as part of a launch promotion, but Zynga had a minimum purchase of 20 credits. Coughing up two quarters got me the difference–and it also hooked up my Facebook account to my PayPal account for the first time.

I currently have 20 CityVille “neighbors.” They are Facebook connections from all different parts of my life, including high school friends, tech industry people and fellow reporters. We get credits for heading over to each other’s cities and helping out, accepting roles at each other’s city halls and other municipal buildings and setting up franchises in each other’s cities and resupplying them.

And Zynga constantly harasses us to post on our own or other people’s Facebook walls to ask them for in-game gifts and brag about in-game achievements.

Conscious of polluting other people’s walls and admitting to people how much CityVille I play, I usually decline all the offers to broadcast my CityVille needs and accomplishments. But it’s clear Zynga could stand to add even more communication channels if it wanted to; a friend recently emailed me off-game to ask if I could hurry up and send him a CityVille zoning permit.

I get the sense most of my particular set of neighbors haven’t given Zynga a lot of cash for virtual goods, considering our cities are growing at about the same rate and I see them on there at least once a day helping tend to my crops and resupplying their franchises. There are no in-game advertisements.

A few of my neighbors, however, have accumulated premium goodies galore. A certain Facebook exec’s city is decorated with paid-for doodads like a basketball court, tennis court and bronze statue–but I imagine it’s not too hard for him, of all people, to stock up on Facebook credits.

A particular start-up CEO who’s my virtual neighbor seems to play on an hourly basis. He has already hit level 35. You know that somewhere a Zynga engineer is scurrying to create more tasks and content to add more levels to keep up with him and other addicts.

And only one of my neighbors appears to have never returned to the game after setting up her initial city.

Meanwhile, my own city keeps on growing. I’m currently at level 26. I’m now the mayor of my city and considering a run for governor.

But, now that I’m back from the hospital, I’d honestly really like to stop playing this game and let the healing begin.

Update: Since I first wrote a draft of this post on Sunday CityVille added 10 million users. I’ve updated the stats as of Wednesday morning.

From there, Motorola starts taking swipes at the current competition, including the iPad, which it calls a “giant iPhone,” and the Galaxy Tab, which it says is “Android OS, but Android OS for a phone.”

As for Motorola’s tablet, it is shrouded, but a buzzing bee next to a Motorola logo would seem to confirm its use of Honeycomb, the version of Android being explicitly developed for tablets. The video ends with the text “CES 2011.”

Google’s Andy Rubin showed a prototype Honeycomb-based Motorola tablet at last month’s D: Dive Into Mobile conference. He said the device was based on an Nvidia Tegra processor, but shared few other technical details. (If you missed the talk, there’s a video of Rubin’s presentation here).

In a backstage interview with Mobilized, Rubin confirmed that Honeycomb is specifically aimed at tablets, tweaking the Android interface to be better suited to running on larger devices and take advantage of the added screen real estate.

After our successful D: Dive Into Mobile conference last week, the D: All Things Digital train keeps chugging away and is now headed to Las Vegas just after the new year.

There, we will do a second D event at the Consumer Electronics Show, which will take place from January 6 to 9, 2011.

It will, natch, be focused on the consumer electronics arena, and the big trends impacting it.

Unlike our other conferences, the D@CES program is only one afternoon, on Friday, January 7, at the Venetian’s Marcello ballroom, followed by a party at the hotel’s V Bar.

Last year’s tech execs onstage were Palm CEO Jon Rubinstein, Netflix founder and CEO Reed Hastings and Google’s Android chief Andy Rubin.

This year, the trio will be: Twitter CEO Dick Costolo, Nvidia co-founder and CEO Jen-Hsun Huang and Dean Hachamovitch, who heads the Internet Explorer team within the Windows unit at Microsoft.

Costolo (pictured here), a longtime entrepreneur, took over from co-founder Evan Williams earlier this year and is charged with turning the microblogging service into a real-live boy, um, company.

Twitter is making a big push into the mainstream and also wants to be present for all the many devices shown at CES.

BoomTown will be grilling Costolo. Well done, I hope!

Nvidia’s Huang (pictured here) is leading a big change for the company. Although known for its PC graphics chips, Nvidia is shifting an increasing amount of focus to other areas, such as mobile chips with its Tegra line.

Huang will be interviewed by Mobilized’s Ina Fried.

Walt Mossberg will take on Hachamovitch (pictured below), who heads the IE team at Microsoft.

Well known for sporting a different black shirt featuring a different saying made up of the IE logo and letters at every keynote speech, he has been at the software giant since 1990.

We thought bringing his voice was important, since Hachamovitch has been focusing on privacy using the browser, an increasingly key topic in tech.

D@CES is invitation only, but if you want to go, email me at Kara@AllThingsD.com and I will send an invite, as long as supplies last.

Marketers are exploring a variety of formats, including sponsorships that give readers free books. Videos, graphics or text with an advertiser’s message that appear when a person first starts a book or along the border of the digital pages are also in the works. Ads can be targeted based on the book’s content and the demographic and profile information of the reader.
The advertising business has dabbled with books before without much success as authors howled and revenues proved skimpy. It’s not clear that readers and authors would be more accepting now.

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The first RPG to make use of the Unreal game engine, Infinity Blade takes the iOS platform closer to the console gaming experience than any other game I’ve seen. Combat is engaging, despite the constraints of touch-based gaming, and the graphics and textures are impressive enough to drop your jaw–even if you’re already familiar with Infinity Blade’s precursor Epic Citadel, an app designed to do nothing more than show off a beautifully Unreal Engine-rendered 3-D castle. Infinity Blade makes Hero of Sparta look like Donkey Kong and shows off what’s possible when you push iOS and the hardware on which it runs to the limits.

Earlier this year, Nintendo of America President Reggie Fils-Aime said he thought the greatest competitive threat to Nintendo’s gaming business came out of Cupertino. “Do I think that in the near term [Apple] can hurt us more than Microsoft?” he said. “Absolutely.”

Infinity Blade is just one more reason to agree with him.