.NET RIA Serviceshttp://blogs.msdn.com/saurabh/archive/2009/03/19/net-ria-services.aspxOver the last year I have been working on .NET RIA Services , a preview of which just went public at MIX. Brad Abrams does a great job on his blog of answering the obvious question you might have - What is .NET RIA Services? . Also be sure to check outen-USCommunityServer 2.1 SP1 (Build: 61025.2)