A - Got a chance to play with HALO 3 in the lobby. Wow. Makes me want to get a box.

1 - WCF is the communication platform for Microsoft for the next 10 years at least (right out of the Microsoft mouth)

That means that Remoting, ASMX, etc. are all legacy technologies...

2 - 2.0, 3.0, and 3.5 runtimes are all the same. They just provide new features in the later versions.

VS2008 will allow you to target specific runtime "versions."

3 - Windows Service hosting for WCF is the most performant - "as close to the metal as we can get"

4 - API First feel for WCF as opposed to Contract First

5 - Labs that don't work right, suck eggs.