NVIDIA finally released its WHQL certified Windows Vista drivers.
WHQL Certified driver for GeForce 8800, GeForce 7 series, and GeForce 6
series GPUs
Beta driver for NVIDIA SLI support for GeForce 8800 GTX/GTS GPUs
This driver supports the following features:
Single GPU support
DirectX 9 support for GeForce 6/7/8 series GPUs
DirectX 10 support for GeForce 8800 GPUs
OpenGL support for GeForce 6/7/8 series GPUs
NVIDIA SLI support
DirectX 9 support for GeForce 8800 GPUs
OpenGL support for GeForce 8800 GPUs
DirectX 9 and OpenGL NVIDIA SLI support for GeForce 6 and 7 series GPUs
and DirectX 10 NVIDIA SLI support for GeForce 8800 GPUs will be available in
a future driver
Looks like these drivers are still not perfect as DirectX 10 SLI support for the GeForce 8800 is still missing.