I'm going to play with Google Maps some more for an Art project I want to play with this summer. I find this stuff to be useful when I'm having a video game craving... the same kind of problem solving is employed, and at least I'm learning a little something in the process.
The tool is here if you want to play with it. It is on my server box on my cable connection, so don't all click at once.
If you find the code useful, feel free to take it (of course), but you'll need your own key from google to use the google maps API.