Microsoft has released the Microsoft .NET RIA Services May 2009 Preview.

Overview (from MSDN)
The .NET RIA Services is a framework that provides a pattern to write application logic that runs on the mid-tier and controls access to data for queries, changes and custom operations.

Microsoft .NET RIA Services simplifies the traditional n-tier application pattern by bringing together the ASP.NET and Silverlight platforms. RIA Services provides a pattern to write application logic that runs on the mid-tier and controls access to data for queries, changes and custom operations. It also provides end-to-end support for common tasks such as data validation, authentication and roles by integrating with Silverlight components on the client and ASP.NET on the mid-tier.

Get the install and whitepaper here.

links: digg this    del.icio.us    technorati    reddit