Probably you already read this announcement somewhere else in the net, so I'll not replicate the news here.

What excites me the most are mainly two things:

• Part of the ASP.NET MVC framework are going to be included into the core ASP.NET framework: System.Web.Routing will be included in ASP.NET with the SP1, so around this summer, probably well before ASP.NET MVC is RTW
• Intellisense will work for Javascript files, and will have support for jQuery, Prototype and other popular JS library out of the box.

You can read more about the other improvements on ScottGu blog and see what's really changing on ScottHa one.

Now off to downloading it, but going to run it only on a VM.