Since some weeks I provide SVN snapshots of KPowersave via the openSUSE build service for openSUSE 10.2 and 10.3/factory. You can get the packages from my home project. Feel free to test and report bugs via openSUSE bugzilla (assign to: dkukawka_at_novell_dot_com).
If I find the time and muse I add also packages for other distributions (patches for the spec-file are welcome) sometime.