Upper Arm-IMU and Lights (2012)
Another x-IMU is added to the upper arm as part of a plan to senses the location of each limb so that a wire-frame of the upper body can be re-constructed and used to give more modes of control to gestures and position/location of the hands in space. This auxiliary port outputs from this x-IMU could be used to control functionally decorative LED lights running up and down the arm.
Fabric LED light strip: