ToDo

EL5 Packages
VirtualBox (kmod-vbox)
VMware (kmod-openvm)
OpenAFS (kmod-openafs)
GPFS (kmod-gpfs)
kmod-powernow-k8 — RHEL 5.6 beta has a patch that fixes the known issue. Once this is confirmed in the GA release, this package can be deprecated. -> Update: This is confirmed. kmod-powernow-k8 is no longer needed as of EL 5.6.

Miscellaneous
collaborative work with Jon Masters (see Red Hat bug tracker and ELRepo bug tracker )

For the Future
btrfs (btrfs is not viable with EL5.) Already in EL6 as Technology Preview.

---