I'd be amazed if the ps3 gets a soft mod solution before the wii..
x360 has been hacked for some time. as far as i know it does not void your warranty but i could be mistaken. i'd speculate that xbox live keeps many people from doing it, though.
Demon's Souls Official Thread | Currently playing: Left 4 Dead 2, LittleBigPlanet 2, Magicka