Wow. I had no idea... I wasn't even tracking VS2008, and its already been released (RTM on the 19th of this month).
It includes .NET. 3.5 (which is apparently a 127MB download), which has LINQ, ASP.NET AJAX built-in, and some other stuff...
Well, that's pretty much everything I have to say about that. I'm still good with .NET 2.0 and Ruby (sometimes on Rails!) for my current projects. I probably won't upgrade / update unless a client specifically requests it.
I might take a better look at 3.5 when ASP.NET's MVC framework is released.