How interesting.
Train Tracking is a fairly interesting game. I had the demo a while back. You sit and watch the train plaforms. You have a list of train numbers to watch for and must click on the number when that train is in view. Its pretty simple, but entertaining little time waster.
Turns out this exact concept was made in the early 90s, called Sensible Trainspotting. It was released for free as a "thank you" to this one companies fans. Cool.
Only, Train Tracking doesnt mention ST at all and claims their game is an original creation. And they charge money for it. So this site has decided that instead of calling down Codemasters lawyers (Codemasters owns the IP and such from that old company), they have made the full registered version of Train Tracking available.
Kind of warezy, kind of protest. Either way...hey, free game.