As Asert says, we're ready to pay for this driver, tired of waiting for non-promised patches. I think it shouldn't be so difficult to gather 50 people all over the world who are seriously interested in sponsoring the development of the accelerated kext for the Intel GMA 4500 HD board. I'd be happy to support (with dollars, I mean) such a project. If I had the time I'll try myself but for the moment...

Is there a skilled developer who wants to volunteer?