Today in Tech: Did Apple and book publishers collude to raise e-book prices?

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"Why are we arguing? Of course we're in a post-PC world."
- Ex Microsoft chief software architect Ray Ozzie (CNET)

* Apple (AAPL) unveiled the latest iPad, simply called the "iPad." (No number in the name this time.) The newest tablet packs a sharp 2,048 by 1,536 resolution Retina Display with better color saturation, a new dual-core A5X processor with quad-core graphics, a 5-megapixel iSight camera, and support for 4G LTE on AT&T and Verizon, enabling much faster download speeds. Also announced: a slightly updated Apple TV with the ability to stream movies in 1080p.

* According to The Wall Street Journal, the Justice Department reportedly plans to sue Apple and five U.S. publishers for allegedly trying to raise the prices of e-books. In doing so, it's believed such actions violate federal antitrust laws. (The Wall Street Journal)

*  SXSW is fast approaching. As it goes every year for the tech-focused Interactive portion, one app usually emerges to rule them all. This year's potential breakout star may be one centered around event networking like Highlight or Sonar. Both bubble up nearby people you've never met before based on common interests and connections. (BetaKit)

* How Microsoft's Kinect for Windows ($250) can benefit businesses, too. (CNNMoney)

* Facebook increased its line of credit and is borrowing $3 billion for costs associated with "the vesting of employee stock." (The New York Times)

* Twitter revenue chief Adam Bain on the information network's American Express partnership and overall marketing potential. (Fast Company)

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