The Entity Framework team just released CTP 1 of the Entity Framework for .NET 4.0 Beta 1. The next version of the Entity Framework has a bunch of cool features a lot of have been clamoring for, such as support for POCO (Plain Old CLR Objects), lazy loading, and n-tier scenarios. The team has also posted a series of walkthroughs you can try out:
Enjoy.
[...] also published a series of posts on new features on the ADO.NET Team Blog. We now have the first CTP of EF4 and the MSDN documentation is [...]