Hello The Gu -Scott Guthrie- has announced the ASP.NET MVC 1.0. You can read the full post here. The amazing thing that ASP.NET MVC is an open source project and the code released under MS-PL licenses.
And they say Microsoft does not support open source. They published the source code of the .NET framework itself last year -but it was a closed source- and they now releasing open source projects. Who knows what future is hiding for us.