What you don't read ScottGu's blog? Who DOESN'T read his blog? Well, apparently me - the MVC stuff is flying out the door. Are you keeping up? Are you using it yet? How's it going? Let me know. I'll be reading his next post on added AJAX functionality as soon as he publishes it!
ASP.NET MVC Preview 4 Release (Part 1) - ScottGu's Blog