Worldwide Developers Conference 2011

Worldwide Developers Conference 2011 (or WWDC 2011 or WWDC11) was a computer conference that was hosted by Apple Inc. for its developers at the Moscone Center's West Hall in San Francisco, California. It was Apple's 22nd annual Worldwide Developers Conference, held from June 6 to 10, 2011.

Attendance
The event reportedly sold out within just 12 hours of the 5,000 tickets being placed on sale on March 28, 2011. The ticket price also remained the same from the 2010 WWDC, selling at US$1,599, however, after-market pricing for tickets ranged from US$2,500 to US$3,500.

Product announcements
At the keynote event, Apple unveiled its next generation software: Mac OS X Lion, the eighth major release of Mac OS X; iOS 5, the next version of Apple's advanced mobile operating system which powers the iPad, iPhone and iPod touch; and iCloud, Apple's upcoming cloud services offering. This was the final Apple event hosted by Steve Jobs.

Other events
The WWDC 2011 Bash was held on June 9 at the Yerba Buena Gardens, where Michael Franti and Spearhead performed live. Attendees received a black track jacket similar to that of the prior year, but with a smaller "WWDC" across the front and the number "11" stitched on the back.

Keynote video
The WWDC 2011 keynote video was posted on June 6, 2011: (click below to watch)