Apple CEO Steve Jobs delivers the keynote address at the 2011 Apple World Wide Developers Conference at the Moscone Center on June 6, 2011 in San Francisco, California. Apple CEO Steve Jobs returned from sick leave to introduce Apple's new iCloud storage system and the next versions of Apple's iOS and Mac OSX. (Photo by Justin Sullivan/Getty Images)

Apple Senior VP of iPhone Software Scott Forstall demonstrates a new keyboard on the iPad for typing with thumbs as he announces the new iOS5 during the keynote address at the 2011 Apple World Wide Developers Conference at the Moscone Center on June 6, 2011 in San Francisco, California. (Photo by Justin Sullivan/Getty Images)

Apple Senior VP of iPhone Software Scott Forstall announces the new iOS5 as he speaks during the keynote address at the 2011 Apple World Wide Developers Conference at the Moscone Center on June 6, 2011 in San Francisco, California. (Photo by Justin Sullivan/Getty Images)