I had a great time at my talk  PDC2009 talk, but i was disappointed that I could not demo in both C# and VB. So here is the next best thing: A full play-by-play of the demo, but all in VB!   Enjoy. What you need to get started: Visual Studio 2010 Beta2 Silverlight 4 Beta (now includes RIA Services ) Completed Solution (in VB) Check out the slides and video   from the talk Starting Off I am starting off with the new Business Application Template that gets installed with RIA Services.  This new template includes: Pattern for page navigation Log\Logout and new user registration support Localizable User settings Shared Code For this demo, I am going to used a customized version of the template.. After you create the project...(read more)Go to the complete details ...