Modal View Controller (MVC) Framework - This looks Great!
ScottGu has been blogging about the MVC. This the first really cool thing that I have seen come out of VS 2008. Don't get my wrong I am looking forward the VS 2008, but nothing huge until now.
Finally, a production quality URL writing system for data driven web sites. With out all the query string stuff. If this works as advertised out data driven sites should have reasonable human readable URLs with out have to do a ton of HttpHandler logic. In ScottGu's ASP.NET MVC Framework (Part 1) - ScottGu's Blog; he does an amazing job of detailing the usage of MVC. I can't wait for Part 2.
Scott thanks for taking the time to demonstrate the MVC. Your level of detail is greatly appreciated.