from Wikipedia: “The Apple Worldwide Developers Conference, commonly abbreviated WWDC, is a conference held annually in California by Apple Inc. The conference is primarily used by Apple to showcase its new software and technologies for developers, as well as offering hands-on labs and feedback sessions. The number of attendees usually varies between 2,000 to 4,200 developers; however, during WWDC 2007, Steve Jobs noted that there were over 5,000 attendees. WWDC 2008–2010 were capped and sold out at 5,000 attendees (5,200 including special attendees).”
If you missed the event, subscribe to the Apple Keynotes (or, “Steve-notes” if you’re seriously nerdy) podcast feed to watch it and others!