The official source of information on Managed Providers, DataSet & Entity Framework from Microsoft
The December CTP of ADO.NET Data Services (also known as Project Astoria) has been Released! You can download the CTP here as part of the ASP.NET 3.5 Extensions preview release.
For more information on ADO.NET Data Services check out http://blogs.msdn.com/astoriateam/default.aspx .
Elisa FlaskoProgram Manager, Data Programmability