Just watched the "Chatting about LINQ and ADO.NET Entities" video on Channel9 - Hat tip to Jonesie for the heads up. He listed it as a "Must Watch" - I totally agree. This gives a great overview of some of the changes that are coming with LINQ.
This also brings some new information on ADO.NET Entities which an accidental MSDN paper talked about earlier in the year. Its coming as an extension for ADO.NET and will CTP later in the year, Im very much looking forward to this! There is definitely a big investment being made in presenting a very comprehensive ORM model, far more than just what you can see today with DLINQ - which was simply presented as LINQ over SQL Server.
If you are building out data driven apps in .NET - make sure you have a watch. LINQ rocks!