Darksiders: Preorder code

For those of you who don't know there was pre-order content for the game but it turns out the code for the content(a in-game weapon call The Harvester) is unlocked by a universal code: "The Hollow Lord".

Also Darksiders is an awesome game its like a darker version of Zelda with blood and demons.

is it only for the xbox360..? Would it work for the ps3?

Thanks coffin, been looking for this for awhile.