This is the prototype that we showed at Exploration Place.
An easy way to run this app on Linux or OSX is to open up the command terminal and navigate to the correct directory. Type the command ~$ python -m SimpleHTTPServer [portnumber] to start a web server. The port number is optional but the default is 8000 which is the same port number that the app engine server uses so it is best to choose a port number like 8080. Once the server is running go to a browser and type http://localhost:8080