Google I/O 2013 officially kicked off registration, and officially sold out in less than an hour, despite the rather steep price tags.

This year's Google I/O developer conference will take place at the Moscone Center in San Francisco from May 15 to 17. As the event is always a huge draw for the developer community, it only took about 50 minutes for all tickets to sell out and Google to close registration. Google opened registration at 7 a.m. PDT/ 10 a.m. EDT.

Google quickly displayed the "sold out" message once the tickets vaporized, but the registration page does sport a note informing interested fans that the Google I/O keynotes and top sessions will be available on computer, phone or tablet.

Keynotes and top sessions will stream live on the Google Developers Live @ I/O site, and all talks will also be recorded and available online afterward. The high price tags — $900 for the general public and $300 for academic students and faculty — seem to barely make an impediment. On the other hand, this year's 50 minutes' race did not beat last year's rush, when tickets sold out in roughly 20 minutes after going on sale.

Athough Google started sending save-the-dates reminders to developers back in December, the company did not offer many details about what to expect. If the Google I/O 2013 conference is anything like last year's conference, however, attendees will have plenty to enjoy and talk about.

Last year at Google I/O, the Internet giant showed off its Android 4.1 Jelly Bean operating system, as well as Google Now, Google+ Events, 3-D Google Earth imagery, Chrome and Google Drive for iOS and a new YouTube app. The conference also had plenty of hardware advancements to boast, including Google's first tablet — the Nexus 7 — and the slippery Nexus Q media hub.

The high-flying demo of Google Glass, however, was the highlight of last year's conference. Google's Sergey Brin showed off the high-tech specs of the Google Glass project with a live video presentation from four skydivers who jumped out of a blimp and landed on the roof of the convention center wearing the futuristic glasses. Google allowed U.S.-based attendees to reserve their own pair of Google Glass spectacles for $1,500. Will this year's conference live up to expectations?