DS Rumble Pack

From IGN: “The Rumble Pak, called quite simply the Rumble Pak, vibrates when the Nintendo DS tells it to. Code within DS software will trigger the innerworkings of the cartridge to spin and vibrate, which, in turn, causes the Nintendo DS system to vibrate as well.”

The rumble pack, spared no expense, will ship with Metroid Prime Pinball next week for the Nintendo DS. Any takers out there?