ADO.NET Data Services - Resources
http://www.dotnetmontreal.com/dnn/LinkClick.aspx?fileticket=tK%2fmGnVF8%2bs%3d&tabid=73&mid=411&language=fr-CA
Here are a few good resources to get you started:
Team blog
http://blogs.msdn.com/astoriateam/
Overview
http://msdn.microsoft.com/en-us/library/cc956153.aspx
Using
http://msdn.microsoft.com/en-us/library/cc907912.aspx
How to videos
http://msdn.microsoft.com/en-us/data/cc300162.aspx