Hi,
I just found some time to download you framework, and although I can't built it "out of the box" (some subsonic reference missing and 4 projects I can't load, probably due to the fact I don't have VWG installed on this pc at the moment), the amount of work you seem to have put in it looks impressive.
I will sure dig this out a little further, but have you some screenshots of stuff you have made with it ?
My biggest fear is, that when I choose this route to develop a project for a client, is that I will be "locked in" with their technoloy, and while I hear good stuff on VWG, I read some less pleasant (buggy) stuff here and there ...