dri-devel installs unstable DRI drivers from a CVS snapshot,
replacing parts of your existing XFree86-4 install.

Current major updates include r200 (8500) support, Transform and
Lighting for radeons, and pageflipping support for radeons.  Requires
updated DRM to use.  See pkg-message for information.

WWW: http://people.freebsd.org/~anholt/dri/