Nintendo has announced via press release Wii MotionPlus, an accessory for the Wii remote that works with both the sensor bar and accelerometer to "allow for more comprehensive tracking of a player's arm position and orientation." No other details are provided at the moment, but more information is promised for Nintendo's press conferece tomorrow.

Fun fact: Here's the mass text message Nintendo sent out 2 the press:

This article was originally published on Joystiq.