Nice Post on Wired's Geekdad
"Once you’ve selected your sprite, you are tasked with programming how it interacts with the game. For example, you can program it to react to “bumps” (running into another sprite or a world object). Or you can make it react to different buttons used on the controller. In the 2nd tutorial, you have to change the A button action from shooting a missile to jumping in order to make it across the river. Remember all of this is accomplished via the XBox controller using a visual action tree."
http://www.wired.com/geekdad/2009/07/build-your-own-game-with-kodu/
Also includes a shout-out to our favorite forum:
http://kodu.moco.net/