There have been plenty of posts about the new asp.net MVC framework that was posted from the alt.net conference. There's very little that I can add to those posts other than I am really excited.
Right after that Scott Hanselman (the link to the video is in this link) did a demo of possible ways the MVC could be used to along with the Dynamic Language Runtime. Not only is the MVC code in prototype, but Scott really only had a couple days to show how you could use the DLR with it, so obviously what was shown was rough around the edges. Which is fine, because what the sessions was for (and the conference for that matter) was to spark you imagination.
What he showed was that it's possible to do the View or the Controller in a dynamic runtime and leave your Model in the CLR. To me that's huge, because now I can take the parts I like about Ruby on Rails (view helpers first and formost) and use C# to do my entity objects. To me this goes hand in hand with the principels of agile, use the best tools for the job and don't repeat yourself.
It will be great to just pick the best language and not worry about dynamic vs static.