Yesterday, ASP.NET MVC 1.0 went live! You can download from here. There was announcement at MIX 09 in Las Vegas and a number of Microsoft blogsphere denizens have been writing about it.
So rather than rehashing (or plagiarizing) other bloggers, check out these articles:
To get the latest information, including tutorials, sample code, design galleries, and discuss groups, check out the official site at http://www.asp.net/mvc.