I was keenly browsing the LCA
2007 Programme when I noted David
Airlie's talk on nouveau,
an attempt at a reverse-engineered driver for nVidia graphics cards,
including full 3D, DRM (that's Direct Rendering Manager, not Digital
Rights Restrictions Management) and XvMC support. Or so I
believe. if you like the idea of having all this in a blob-free, open
source driver, then pledge
some money for it!