Looks like the ES team is going to change their code generation model to make it more extendable in the future. Mike and his team are certainly running full speed ahead.

And they are adding VistaDB 3.3 support with Stored Procs (very cool don't you know).

(diagram is from ES 2008 team blog) 

I like the new design.  It actually seems to make more sense to me than some of the other ORM tools I have seen.  I am not personally sold on the LINQ Entity model yet.  I don't have enough experience with it though to make a definitive statements.  One thing you can say about EntitySpaces is that the code and logic will all be written in your language, not LINQ.  So there is less of a learning curve.  And I have always thought Mike has great ideas about how to help programs build other programs.  Automated a lot of the what I always called "Code Monkey" parts of database access. Read the full blog for more information here:  Entity Spaces blog