There has recently been an interesting thread in the community going on about a "vote of no confidence" for the first version of the Entity Framework, and Tim Mallalieu has posted a complete response, detailing how our team is working to address many of the concerns that have been raised in V2 of the Entity Framework.

To summarize here, the scenarios raised are scenarios that we truly to care deeply about, but do not fully support in V1, as we unfortunately had to make the choice between adding more features (these features more specifically, as they were all considered heavily as we received and heard feedback from this subset of the community) vs. working towards the initial goal set out for V1, which was to lay the groundwork for a multi-release strategy around the Entity Framework and the Microsoft Data Platform.

Anyways, I'm not going to restate all of what's in Tim's post... but you can check it out here.