Refresh Cannon Bot
The awesome nerd over at Geoff's Boring Programming Stuff gave me the biggest compliment a programmer could recieve. He wrote a program to use my program! As he points out in his post, it seems pretty clear that he is not the only one. If there is anything more rewarding than that, I can't think what it would be. Thanks Geoff.
Edit: (May 18th, 2009)
Apparently my brother's room mate took at shot a writting a bot of his own. You can see his progress here and his wins here.