I'm a little late with this, maybe you've already seen it. Back in February of this year, Google and the University of Waterloo (Ontario) had a contest to write the best TRON AI. You could submit bots in several different languages, and they pit them against each other. They even have a bunch of resources on the site for writing the AI. Very interesting stuff here, if something like this piques your curiosity: http://csclub.uwaterloo.ca/contest/index.php
Found it from this kid's site, a student in Austin, TX.