Here's a link to a petition to Buena Vista games that demands they they continue supporting their TRON 2.0 software for PC, or in the very least, release the source code so that the community can expand on this title. They dropped the ball and basically told their consumers "Thanks for the money, now good luck figuring it out". Even if you don't play TRON 2.0, please sign this out of principle. It's the game makers duty to stand by their product. Thanks in advance.
http://www.petitiononline.com/tron20/petition.html