Luc showcased his xf86-video-unichrome driver that he modularized according to his proposed changes, but that didn't satisfy everyone since the VIA Unichrome driver is not nearly as complex as the Radeon, Nouveau, or Intel Linux drivers. As a result, Luc has begun modularizing everything himself in an attempt to prove the feasibility of this design.
Over on his FreeDesktop.org Cgit page Luc is now hosting branched Mesa DRI drivers for the Intel i810, Intel i9xx, Mach64, MGA, R128, Savage, SiS, Tdfx, and Unichrome that are done according to his philosophy. There's also the Mesa DRI SDK headers that he has created. The modularized Mesa Radeon driver will also be there once the FreeDesktop.org server has updated. Luc also has other changes pending that should be committed shortly.