To quote, courtesy of Slashdot (linked above) today: The PlayStation 3 has recently seen an explosion of releases of emulators and games for the Yellow Dog Linux distro on Sony's PS3 console.
Once you have installed Yellow Dog Linux you then have the ability to try out numerous applications and emulators including MAME, SNES, Amiga, Dos, Commodore and Atari emulators (that's the tip of the iceberg) and such games as Quake 2, Duke Nukem 3D, Hexen 2 and Alephone.