When does Google I/O registration open up usually?

Question

I have been polishing my Java lately, and I am really starting to dig into the Android SDK. I am looking forward to attending Google's I/O conference next year, and I am nervous that I am going to miss the sign up period. Historically, when has the conference registration opened up? For those of you who went last year, do you remember when registration opened up?

Thanks for your help, I really don't want to miss out on next year's event!

Answer 1

According to this, Google will "keep you updated when registration opens for I/O 2011 on the Google Code Blog, Twitter, and Buzz." According to this, last year it started in Jan, early bird reg ended April 16