Phoronix reports the open-source Noveau driver for NVIDIA graphics cards is reaching a stable state. Check it out over here.
"Nouveau, the reverse-engineered open-source graphics driver
for NVIDIA's entire range of graphics processors, is reaching a stable
state where it's exiting the "staging" area of the Linux 3.4 kernel and
being considered part of the standard, stable kernel configuration. How
though is the Nouveau driver working out compared to NVIDIA's official,
closed-source Linux graphics driver? Here are some new benchmarks from
ten different graphics cards and other information on the state of Nouveau."