There is another interesting post about ASP.NET MVC Framework. This time, Nikhil Kothari presents a few basic Ajax features running on top of the ASP.NET MVC framework. As he stated, that is only "some early ideas, experimentation and app-building results".
He created a small prototype in order to experiment a little bit - The Task List application. You can download source code from here, and read full article with detailed axplanation here.
If you are not familiar wit ASP.NET MVC Framework, read this, this and this Scott Guthire's posts which I pointed to in my previous posts.