If anybody has missed it, Scott Gutrie has started to post a great series of posts about the new features of the Visual Studio Orcas release (planned to be released later this year).
Here is a link to the last post about class extension methods, that BY FAR must be the coolest new feature yet have I have seen in Orcas.
Some VB9 content about the stuff he mentions (in C#) can be found here.