The next annual Google I/O, one of the most hotly anticipated tech conferences each year, will take place May 15-17, 2013, the Google Developers Twitter account announced today.

You can't sign up just yet—registration information is promised in early 2013. Held since 2008 in San Francisco, Google I/O is famous in part for hosting the company's annual Oprah moment. Everybody who attends get at least one special gift, ranging from Android phones and tablets to Chromebooks (or all of the above).

It's also when Google unveils many of its most ambitious projects. They stepped it up a notch at the 2012 Google I/O when skydivers jumped from a plane over San Francisco wearing the Project Glass Android glasses.

Google I/O has about 5,000 attendees each year and it's a guaranteed sellout; 2012 sold out within 20 minutes. Registration fees were $900 this year (or $300 for students and college staff). At one point Google said it would require attendees to pass a programming test just to get the chance to buy tickets, but that plan was not put into action for Google I/O 2012.

As in past years, we'll plan to have Ars staff at Google I/O to bring you all the news.