asp.net mvc Beta released16 Oct 2008
I've been watching the ASP.net MVC stuff for quite a while now, and I'm really impressed with everything I've seen so far. For me, this fits my style of development - much more control over the html markup, with a whole whack of features that handle the 60-80% of application building scenarios - presenting data to users to edit, validation, and managing redirections.
There are much better bloggers out there than I am that have done a great job of documenting the asp.net mvc stuff, so I won't bother going into details. ScottGu's site is a great resource.