I have had NOTHING BUT driver issues with any version of windows and my unibody MBP.
This was not the case with the pre-unibody I just got rid of, that thing was flawless. I install bootcamp drivers on the unibody, and it doesnt install drivers for the "coprocessor, wifi, ethernet, and SMBUS". When I navigate through the bootcamp file structure, there is NO NVIDIA folder to install drivers manually from.
Both the DVD that came with the new Unibody, and the bootcamp apple site update do the same thing, both leave no NVIDIA drivers on the machine.
This happens for XP32, Vista64 Ult, Win7 beta. Ive even had issues with the Sound Output port going red ocassionally. This is with both drivers from the DVD, and drivers straight from realtek.
Im really stumped what to do. Im trying to just wait for SL.