I did an interview with Wally McClure recently about the Entity Framework for his podcast. It is now available for your listening pleasure. I had some bandwidth issues that caused Skype to choke a few times, but it sounds like Wally did some crafty editing on those parts.
Our discussion was fairly general and introductory, so if you aren't already aware of the Entity Framework, this should be a decent introduction.
Cheers,
++Alan