There was an unofficial annoucement that has since been pulled, that declared March 13th @ 7am PDT as the registration date for Google I/O 2013. The conference dates are to be held from May 15-17 in San Francisco, Ca. I plan on going, that is if I can get a ticket. Reports claim that tickets sold out last year in as little as 50 seconds to 50 minutes. Either way, many that were willing to pay the hefty registration fees ($900 in 2012) weren't able to get tickets.