Interesting. Isn't the XBox controller "asymmetrical", in that the left joystick is above the D-pad, further up and to the side than the right joystick is? (much like a Nintendo Gamecube controller)

transmitter vs controller images:

http://i.ebayimg.com/images/i/280927693588-0-1/s-l1000.jpg

https://upload.wikimedia.org/wikipedia/commons/8/89/PlayStat...

http://gaming.logitech.com/assets/47832/f310-gaming-gamepad-...

https://upload.wikimedia.org/wikipedia/commons/e/ed/Xbox-360...

http://www.gamechoiceclub.com/image/gc_controller_black.gif