Recently I've experienced my first Linux driver issue in years trying to use an I7's integrated graphics, and not even the shiny new model. It needs a newer kernel and version of X than any distro I tried provided so I've had to go with Debian testing and hope it doesn't break when stuff updates. When Linux works (which is most of the time) it's great but when it doesn't it's far from fun, the last time I tried to use AMD drivers every dropdown box showed as a transparent rectangle revealing the wallpaper below!
Sadly you are right dante, technically the drivers are completely incompatible much like trying to fit spark plugs into a diesel engine. The closest anything came to this idea was ndiswrapper which used to be the only way to get most wireless cards to work in Linux, it was a wrapper around Windows drivers which you had to provide. I guess this confirms it's not a legal problem though I didn't care about such things at the time.
Do you have a specific problem or is this just a pipedream to enable the latest graphics cards and games to be ported to Linux as the driver support would be there?