Check out these links on ADO.NET v.Next:

Blogs:

          http://blogs.msdn.com/data

            http://blogs.msdn.com/dataaccess

Channel 9:

http://channel9.msdn.com/Showpost.aspx?postid=191667 

Screencast:

http://blogs.msdn.com/dataaccess/archive/2006/05/10/594781.aspx