If DQ9 is indeed on the DS they should release it first. Since DS games are smaller and have worse graphics it doesn't cost nearly as much money to develop meaning a bigger return for SquareEnix. Gran Turismo and Metal Gear Solid will give a good sales boost to the PS3 (according to this site, MGS sells 5 millions copies per game and GT sells 9 million) and that means more potential sales for FF.