We tested (or got reports for) the powersave package sources on following distributions:
If you plan to build and install the sources, read the Security section for user management issues (restrict people who are allowed to e.g. suspend).
We really like to see packages for more distributions. It cost me too much time to only install the above mentioned distributions to test-compile and install the sources.
If you think you have knowledge enough on the distribution you are working on, you are welcome to submit some build scripts. I'll try to integrate them into CVS and will build packages for new versions regularly.
Distribution specific patches will gladly be committed(as long as they don't break anything). Please contact me if you have any questions (firstname.lastname@example.org)