Presentan el iPad 2

Steve Jobs, Apple's chief executive, speaks at an event introducing the iPad 2 in San Francisco, on March 2, 2011. The new version of the tablet, which will ship in the U.S. on March 11, has a new core, front and rear cameras, and is thinner and lighter than its predecessor. (Jim Wilson/The New York Times)

Steve Jobs, Apple's chief executive, speaks at an event introducing the iPad 2 in San Francisco, on March 2, 2011. The new version of the tablet, which will ship in the U.S. on March 11, has a new core, front and rear cameras, and is thinner and lighter than its predecessor. (Jim Wilson/The New York Times)