I just started my GTX 470 using the vista console version on a Windows 7 64-bit system.
As I write this the client has completed 17% on a project 10627. HFM shows a TPF of 00:00:49, 0 PPD, 0 Credit, Unknown Client Type and an Unknown Core. It does show a Core Version of 2.09.
Update: I just noticed I was running at 104C @ 50% fan. I upped the fan to 100% and now have 73C. Unfortunately the sun is going down so the ambient temp is not as high as it will be tomorrow.