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More than 20 percent of black and Hispanic teens say they have used their cellphones to send a "sext" message showing a nude or semi-nude photo or video of themselves to another person, and more than 30 percent say they have received such sext messages, according to a new study.

Google’s short-term goals for its Motorola smartphone division are two-fold: clear the rubble on the runway and build for the future. 

Hedge fund manager David Einhorn's Greenlight Capital has dropped its lawsuit against Apple Inc after winning a battle to stop the iPhone maker from a shareholder vote on a proposal to abolish its ability to issue preferred shares at its discretion.

Mobile money may seem like a hot concept, but consumers aren't warming to it. At the world's largest cellphone trade show, here in Barcelona this week, the 70,000 attendees are encouraged to use their cellphones -instead their keycards- to get past the turnstiles at the door. But very few people took the chance to do that. The process of setting up the phone to act as a keycard proved too much of a hassle.

One thing appeared certain when Barnes & Noble announced Thursday how much money its Nook e-readers brought in over the past three months: The news would be lousy. And it was. Revenue from the company's Nook division for its fiscal 2013 third quarter declined 26% from the same period a year ago, primarily as a result of slumping sales of the devices.

Apple Inc CEO Tim Cook acknowledged on Wednesday that his shareholders were disappointed with a five-month slide of more than 30 percent in the company's share price, but urged a focus on the longer term.

Best Buy's decision to make its price-match guarantee permanent seems an intelligent move. A decision, though, that should've been made quite before now.

HTC has unveiled its new flagship smartphone, the revamped HTC One, in an attempt to regain lost market share.

Android continues to dominate the battle to be the top smartphone system in the world, thanks in part to Samsung, which reigned as the top phone manufacturer for 2012.

Former BlackBerry co-CEO Jim Balsillie has entered his own vote of no confidence in the company he helped run into the ground back when it was known as Research in Motion.