Originally posted by Undercovermc
With a Jailbroken PS3, you can run unsigned package files, host MW2 challenge lobbies, and play most PS3 games from the internal HDD or an external HDD.
EDIT: In order to use it, you must be on firmware 3.41. If you've already updated to firmware 3.42, you're out of luck, because you cannot downgrade the PS3 firmware.
Damn, your sig is uber sexy. I forgot what I'm going to post.