This presentation was given by Zlatko Michailov & Asad Khan, PMs, Microsoft ADO.NET. The best thing said in the entire presentation was that if your model is well built you shouldn't have to do any group bys or joins. Drink the kool-aid, swallow the pill, enjoy that illusion in a real-world situation. Especially some piece of $%^@ database that is mission critical and the data is 10 years old, not normalized, and some one else's baby. But if you are going to dream, dream big, right?

Their blogs can be found at: http://blogs.msdn.com/esql/. E for entity. Why be normal? right?