Phil Haack PDC presentation on ASP.NET MVC beta on channel 9
Phil Haack Sr. Program manager for the ASP.NET MVC team presented at the PDC. You can watch it on here: http://channel9.msdn.com/pdc2008/PC21/
I really liked his HaackedOverflow demo and the nice interative flow of development. He even demos OpenID authentication in his sample application.
On stage he invited Jeff Atwood from http://stackoverflow.com/ which is the probably the best asp.net MVC app out there. Another MVC site I seen is the MIX09 site: http://2009.visitmix.com/ ...
Both these sites to me seem really fast and clean.