It would be too late if you are still thinking to visit to the WWDC 2012 or not. It’s because all the tickets are now sold out. According to the source, the tickets which are priced at US$1600 are all gone within 2 hours.

In 2010, it took roughly a week for tickets to sell out.And it took about half a day in the last year.

[via 9to5mac]