Last month I created Tetris with Twilio. It allows any telephone (USA only) to be used as an input device to a game of tetris that is played within a web browser. The best part is that once you clear 5 lines your phone is redirected to me and I'll probably pick up and talk to you.

How does it work? I use http://www.twilio.com/ to deal with input from the phone. The main purpose of this project was to learn more about http://www.tornadoweb.org/. Tornado makes it easy to push data to the user in realtime. And for those that like source code it is available here.

Enjoy!