The teams at Microsoft working on the ADO.NET Entity Framework and WCF (ADO.NET) Data Services are wrapping up work for .NET Framework 4, and are ready to kick off the next round of features. This is really part of their open design processes, and they're right looking for your input on new features.

Here's where you want to go:

http://blogs.msdn.com/adonet/archive/2010/02/10/vote-for-future-entity-framework-and-data-services-features.aspx 

Data Services Page: https://connect.microsoft.com/dataplatform/content/content.aspx?ContentID=15540 
Entity Framework Page: https://connect.microsoft.com/dataplatform/content/content.aspx?ContentID=15541