German Helios Software GmbH simplified a Yellow Dog Linux distribution to give you server functionality on the Sony PS3 in less than 6 minutes.

The HELIOS simplified YDL distribution comes on a CD disk image and provides a high performance Linux server OS complete with DHCP network settings, support for Java 1.5 and AppleTalk enhanced kernel. "Our Linux distribution for PS3 is another milestone in our support for the Open Source Community", explained Helmut Tschemernjak, CEO and President of HELIOS Software.
"And bringing our software to the PS3 underlines in the most obvious way, that HELIOS Software runs everywhere: Beginning with UNIX and Intel Linux to Mac OS X, Windows, and now the PS3 Entertainment Center".
Via this Helios Software press-release.

The Yellow Dog Linux has been available for the PS3 since last December. Terra Soft Solutions (site) is offering also solutions to cluster Sony PS3 consoles.