For those interested in taking the latest incarnation of Ubuntu for a spin, you might like to know that a release candidate of Ubuntu 8.10 "Intrepid Ibex" is available for download a few days ahead of the full release.
Only one thing stood out in the release notes to me:
The 71 and 96 series of proprietary nVidia drivers, as provided by the nvidia-glx-legacy and nvidia-glx packages in Ubuntu 8.04, are not compatible with the X.Org included in Ubuntu 8.10. Users with the nVidia TNT, TNT2, TNT Ultra, GeForce, GeForce2, GeForce3, and GeForce4 chipsets are affected and will be transitioned on upgrade to the free nv driver instead. This driver does not support 3D acceleration.