Take Zap! Tech Geeks, Starved for More Battery Power, Give Themselves a Charge.

Any geek can tell you that battery life hasn’t kept up with gadget innovations. But not to worry: Inventors are figuring out how to turn geeks into batteries.

Nvidia’s Tegra 3 Tries to Save Battery in All Sorts of Different Ways

Nvidia says its quad-core processor also can also reduce the power used in backlights, a major drain on mobile device batteries.
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Apple Releases Software Update Designed to Fix iOS 5 Battery Issues

Version 5.0.1 is available on iTunes and coming soon as an over-the-air update.
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Consumer Reports Says iPhone 4S Fixes Antenna Woes, Can Finally Recommend

The magazine says the new model solves the antenna-related issues that caused it to withhold its recommendation of the iPhone 4.
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Verizon’s ThunderBolt Moves Like Lightning

Verizon’s ThunderBolt 4G cellphone is a speed demon, zipping past rival 4G phones’ cellular-data speeds and even past many home land-line Internet connections.
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Nintendo’s 3DS Brings Dizzying Fun On the Go

Katie tests Nintendo 3DS, the first videogame that promises 3-D without the goofy glasses.
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iPad 2: Thin, Not Picture Perfect

The new IPad 2 is thinner, lighter, faster and more powerful than the original. It offers an excellent balance of size, functionality and price, and keeps Apple ahead in the tablet race, at least for now.
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Consumer Reports Continues Its Love-to-Hate Relationship With the iPhone 4

The publication warned on Friday that the Verizon iPhone is also susceptible to the so-called “death grip,” in which signal strength drops when the device is held a certain way. As it did with the AT&T version, Consumer Reports is leaving the phone off its recommended list because of the antenna issue.

Blogs, MacBooks and GSM phones

Walt answers readers’ questions on starting a blog, sleeping MacBooks and GSM phones.

Atrix 4G: Faux Laptop With a Phone For Brains

Walt reviews the Motorola Atrix 4G Android smart phone, which acts as the brains of a small laptop device.

PlayBook on Track for Q1 Kick-Off

PlayBook Sequel Will Run on Sprint 4G

Tablets Flying Fast and Furious at CES

Windows on ARM Is No Knee-Jerk Move