Phoronix reports that Fedora 13 will come with 3D support for the free Nouveau NVIDIA driver. "With Fedora 13, Red Hat is again shipping with the latest free software NVIDIA bits, which now includes 3D support. Thanks to an update to the mesa-dri-drivers-experimental package, there is 3D / OpenGL support enabled for NVIDIA hardware. This 3D support is coming from Nouveau's Gallium3D driver for most of the NVIDIA graphics hardware while there is also a classic Mesa driver for old NV hardware that recently came about."
Read more at LWN