Pre-conference session of Microsoft Software Legend Juval Lowy today seems more a history lesson of WCF than something completely new. All stuff that was shown and demoed was .NET 3.0. If you read his book WCF Programming than you have a the knowledge all attendees got today during this pre-conference session. For me it was/is history repeats it-self and story about WCF and origins is the same. In my point of view there was not much added value here. His book about Programming WCF Services will be updated shortly to a second version available soon through O’Reilly. I think here you could speak about ‘power of repeating’. It must say though that his session was presented in an understandable way and his jokes about VB for instance where very funny.