They support Linux because of the graphics companies that use Linux. They're all on RHEL, not Ubuntu.

NVIDIA kind of supports Linux as a family of distro. There is only one driver for ALL the Linux distros out there, which is nice, keeps things simple for them.

If they need to wrap out a second series of drivers just for Ubuntu and Wayland, I'm not sure it's going to be quality material. Anyway, anything would be better than the current NVIDIA drivers, which are crappy as hell in my book. Now is this because X is also crappy, I can't tell.

"As NVIDIA did not release all the needed documentation for its graphics chip, the development is under the nouveau project which uses reverse engineering to get it to work. Nouveau has been pulled to 2.6.33 kernel. This will allow to use kernel-based mode-setting for NVIDIA cards with this driver."

http://en.wikipedia.org/wiki/Mode-setting

That's some heavy commitment to support Linux right there.

"NVIDIA made the decision to fully support linux a long time ago."

NVIDIA is not legally obligated to support Linux; are they?