The official day 1 of the event started with exciting opening keynote where all of us attending were able to bang the drums in african style :-)
The VS Express editions look prety cool. As you may already know they are targeting the non-professional developers but still will include quite a bunch of features.
I was really impressed by the sessiones delivered by David Chapell and Don Box (although the first one was at a very basic level regarding Biztalk Server).
From Day 3 I should mention the ASP.NET overview sessions (2) where Scott created an asp.net app from scratch.