GameSpot writes: "Game enthusiasts were eagerly anticipating a new motion-control device announcement at E3 this year, but they didn't expect it to come from Nintendo. After all, the company already has a motion-sensing controller in its Wii remote. Nintendo announced its new Wii MotionPlus accessory in conjunction with a brand new Wii Sports game, Wii Sports Resort. The MotionPlus add-on plugs into the bottom of the Wii remote and works together with the remote's sensors to make controls even more precise.
We had a difficult time trying to find someone at E3 who could talk about what the Wii MotionPlus actually does--most of the Nintendo representatives we talked with were fantastic at demonstrating the games, but we didn't get any real technical details until we got in touch with InvenSense, the company that's supplying the gyroscope for the Wii MotionPlus.
InvenSense's Joe Virginia, VP of Wireless Business, was kind enough to explain that the Wii MotionPlus uses multi-axis gyroscopes to sense rotational movement, and combining the MotionPlus's rotation-sensing with the Wii remote's other built-in sensors brings new gaming capabilities to Wii Sports Resort."