For the past few years, Google’s “I/O” developer conference has been THE conference for many developers to attend. It’s the place where you go to understand the latest and greatest tools and services coming out of Google… and where you can get to participate ahead of everyone else. Two years ago I/O attendees were the first to get Google Wave accounts… last year every attendee got an Android phone…

This year proved no different – the Google I/O 2011 registration opened up this morning … and then sold out less than an hour later!

To put this in perspective… about 5,000+ developers attend the event!

Kudos to Google for having created a conference that so many people want to attend.

The Twitter stream tells the tale…

And this compilation of tweets from Google’s Vic Gundrota shows it, too:

P.S. Needless to say, some folks who had been eagerly waiting to register weren’t too pleased, particularly given some of the apparent difficulties with getting access to the registration site.