I finished the instrument! Special thanks to James Simpson for letting me use his motion graphics. Check out his vimeo channel http://www.vimeo.com/JSimpson. And also thanks to Andrew Vail, Ricky Christian, and Stephanie Gonzalez for helping me film.
The instrument consisted of:
8 Sample Buttons
3 Looping Buttons
4 Effects Knobs (Speed, Delay, Kick Rolls, Snare Rolls)
1 iPhone to Control Soundbank Switching
Programmed in Max5: Max patch can be downloaded from here: http://www.mediafire.com/?5eedl516djf0kel