Shyam Pather just posted a couple of screencasts on the Data Access blog.

The screencasts (part 1 here) demonstrate the new features of "ADO.NET vNext" (or ADO.NET 3.0) like the new "Entity" framework and the accompanying "Entity SQL", as well as LINQ.

Well worth watching if you're a database-application developer. I'm very interested in the "n-tier" application of this technology ... how it'll work if, say, I want to pass Entity classes to and from a web service.