It's important to look at the history of the industry and brand your designing for.
Here I overlayed other contributing products to the gaming industry. The insights from this map helped me to define the direction of my project.
3 initial concepts utilizing Wii technology and fundamentals
3 rudimentary forms exploring the "whole body movement" concept - All of these forms incorporate power, IR sensor, game input, and "body sensor" storage/charging.
Iterations! - Lots of sketching to figure everything out. Below are photoshop iterations to visualize the facade of the device.
This product provides some awesome hardware. By creating a console which charges and stores wearable sensors, game developers can go crazy with motion tracking software.
Wii Motion
Nintendo Wii Motion Concept