The TechEd starts tomorrow, however I got a chace to assist to the "PreConferece" sessions, and I have choosen "Guidance about Patterns and Practices", we got late so we started with F. Guerrero talking about DataAccessApplicationBlock.  Nothing new under the sun, but it's interesting to hear this guy talking about the design of this Block, the transaction support and so on...

An interesting trick: Set the application name in the Connection String, very useful while debugging with the profiler.