I seriously think I spent as much if not more time at Mix in the Open Space area than my hotel room. The reason is this seemed to be the place to find anyone. My friend Peter posted some of the recordings done in the Open Space area, which two feature me!
http://blogs.msdn.com/peterlau/archive/2008/03/17/east-coasters-at-the-open-space-at-mix-08.aspx
Really the Open Space area was a great place to be because there always seemed to be a great conversation to have or a new person to meet. It was also close to many power outlets and the labs. I spent a little time working the labs, but not as much as I would have liked. There was so much at Mix to take in, sort of like trying to do Disney in a day.