As I am sure you have heard, we just published the Silverlight 2 Beta 1.  In addition to all the other cool stuff in Silverlight 2, we have included the ASP.NET support for Silverlight...   Just install Microsoft Silverlight Tools Beta 1 for Visual Studio 2008 to check this out. 

Check out my recent post for more information: Islands of Richness with Silverlight on an ASP.NET page



Check out our quickstarts, and the new ASP Silverlight forums.