The ADO.NET team is conducting a focus group about Linq to Entities during TEchEd. Unfortunately, they posted this today and the deadline to sign up is today.

Here's the info to sign up.

I won't be at TEchEd this year and neither will Roger Jennings, but Roger has already created a great list of points he would bring up if he was there. I basically second all of his suggestions. Many of them point to clarity on Microsoft's messaging around Entity Framework (though I personally feel comfortable with this at this point) and then technical details such as being able to deal with perfectly normal relationships between data...you can read what I mean by this if you check out this forum thread.