I was under the impression that much of this was already supported via the mainline PPC port but not in an official capacity via http://wiki.debian.org/PS3. q.v. http://fisica.ufpr.br/fandrade/ps3/ps3-debian-install-howto.html, http://www.keshi.org/moin/PS3/Debian/Live, http://ps3linux.radiolivre.org/english.html, and irc://irc.oftc.net/debian-ps3