If there was one disappointment with the Wii, and trust me, there was, it would have been that the Wiimote cannot calculate true 1:1 movement. Well, today just and hour before Microsoft’s press conference, Nintendo has revealed that they have made a simple attachment that allows the Wii remote to do just that, detect movement exactly as it is being made. Keep in mind that this is an official announcement, not a rumor.

“The Wii MotionPlus accessory attaches to the end of the Wii Remote and, combined with the accelerometer and the sensor bar, allows for more comprehensive tracking of a player’s arm position and orientation, providing players with an unmatched level of precision and immersion,” says Nintendo. “Every slight movement players make with their wrist or arm is rendered identically in real time on the screen, providing a true 1:1 response in their game play. The Wii MotionPlus accessory reconfirms Nintendo’s commitment to making games intuitive and accessible for everyone.”

Naturally, Nintendo will be showing more of the MotionPlus attachment at their conference tomorrow. Speaking of conferences, if the rumors are true, and Microsoft reveals their own motion sensing peripheral, I think it will be reminiscent of when Sony showed the Sixaxis for the first time.