In 2011, less than 12 hours after passes went on sale, Apple's Worldwide Developers Conference had already sold out. To help would-be attendees get a chance to purchase tickets, developers Anthony Herron and Aaron Wardle created WWDC Alerts, a website that lets users sign up to be sent a text message when WWDC tickets for 2012 finally go on sale.
For 2012, Moscone Center's event calendar lists a generic "Corporate Meeting" from Monday, June 11th through Friday, June 15th. It seems likely that this year's WWDC will take place during those dates.
Top Rated Comments
Jobs said that Moscone is "the biggest place" in San Francisco. I wouldn't know, I don't live there.
Also, the new Apple mothership, er, headquarters is supposed to fix this issue.