Google I/O Extended is a gathering of geeks to catch the keynote of Google I/O live. It's happening on 12 a.m., May 11th 2011. More details over at GTUGKL's blog. Seat is limited so register quickly!
While this isn't Android-specific, there is little doubt that Android will be at the fore-front in this event, along with other cool-tech like Google Chrome, AppEngine and much more.