Just returned from Tech-Ed Eilat 2010. It was truly an exciting event with lots of great sessions and cool parties. Specifically I loved the "Deep Dive: Debugging and Performance in Visual Studio 2010" session by Sasha Goldstein and the "Parallel Programming in .NET Framework 4" session by Stephen Toub.
I made a 60 minutes presentation regarding ASP.NET MVC 3 and showed some great stuff with NuGet, Razor Syntax and jQuery. The demo and PPTs can found here
Hope to see again in Tech-Ed 2012