Unfortunately the firm won't be releasing a driver until the end of the month. You can check here what the green company officially states about Vista. It goes something like this.
** GeForce 8800 requires updated drivers for Vista, which will be available to download when Vista is available at retail in late January.
So now we can confidently say that something went terribly wrong with the G80 Vista driver as it has suffered a two-month delay. Nvidia won't show it before the last minute. Perhaps it is yet concerned about something.
G80 DirectX10 performance is still a mystery and I would be very concerned about that part. µ