Why is Square Enix making exclusives/timed exclusives for Xbox 360 only?

[NYANKS]

Ooh ooh I know! I'll take Capitalism for 400. What is moneyhatting? That's correct! (sorry, i had to do it *walks off in shame*).

@ Manuelf, maybe it's because the DS is less intensive to develop for, so a flop isn't as big a risk? Just a guess, not sure.