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Apple CEO Tim Cook speaks about the new iOS 7 during the keynote address of the Apple Worldwide Developers Conference. Eric Risberg/Associated Press
Craig Federighi, senior vice president of software engineering at Apple, introduces the new OS X Mavericks operating system during the keynote address of the Apple Worldwide Developers Conference. Eric Risberg/Associated Press
Craig Federighi, senior vice president of Software Engineering at Apple, demonstrates the new activation lock security feature in iOS 7 during the keynote address of the Apple Worldwide Developers Conference. Eric Risberg/Associated Press
Eddy Cue, Apple senior vice president of Internet Software and Services, introduces the new iTunes Radio during the keynote address of the Apple Worldwide Developers Conference. Eric Risberg/Associated Press
Phil Schiller , senior vice president of worldwide marketing at Apple, introduces the new MacBook Air laptops during the keynote address of the Apple Worldwide Developers Conference. Eric Risberg/Associated Press
New Apple iOS 7 features are displayed on screen during Apple Worldwide Developers Conference (WWDC) 2013 in San Francisco. Stephen Lam/Reuters
The new Mac Pro is previewed at the Apple Worldwide Developers Conference Monday, June 10, 2013 in San Francisco. The new Mac Pro will be the first Mac to be assembled in the US in many years. Eric Risberg/Associated Press