The guys at Neudesic are doing some good stuff with BizTalk Server 2004. If you ever wanted to have a more flexible service window with BizTalk Server 2004 than what is provided in the box you need to check this out. Also Brian mentions he is done with his contribution to the BizTalk Server 2004 book. We are still three chapters from being complete writing. I know everyone wants the book, and we will get there...