Sucks to be the last to know. Rumble Roses developer Yuke's confessed that they no clue the PS3 controller will not feature vibration. When site Games Radar asked Yuke's senior director Taku Chihaya about this, Chihaya said:

We didn't know that! Wow, that stinks. In a lot of games, the use of the vibration can add so much. You walk around here at E3 and the floor's vibrating with bombs going off and stuff. It can really add a lot to a game to have vibration, so I'm kind of disappointed there won't be vibration in the controller.

Comforting to know that Sony's keeping everyone on the same page, including the folks making games for them.

More Here [Games Radar]