openSUSE is a free and Linux-based operating system for your PC, Laptop or Server. It is a project maintained by Novell and their packages feed into the SUSE Linux Enterprise
Useful links
POWER@SUSE - All the POWER/PPC-related stuff at openSUSE.
The versions 10.0 and 10.1 of openSUSE can be easily installed on all recent IBM systems with just some minor tweaking (please see PPC Installation Issues).
