MSDN UK Screencasts: LINQ to Entities - The ObjectContext

ADO.NET V3.0 will come with the ADO.NET Entity Framework and a flexible object relational mapping layer that plugs in to LINQ - LINQ to Entities. In this video we'll take a look at one of the key types in the object model, the ObjectContext that encapsulates a connection to our model, the metadata of the model, the ability to perform CRUD operations and state management capabilities.