Yesterday I gave my presentation on ADO.NET Data Services at the Firestarter SQL 2008 event at the Microsoft Training Center in Irvine. I had a great time presenting, they even had to move my group to a bigger room, and it more than made up for the stress of trying to prepare a presentation with fluidly changing bits.
For your pre-beta, pre-CTP enjoyment I give you my slides and code firestarter-adodataservices.zip (588.30 kb)
If you have questions, drop me a line,
James