For the iOS crowd: here is a similar game my friends and I built at a Hackathon last week with Node and Socket.io that you can play from mobile Safari: http://phonesma.sh/
Visit it on your browser to get started, then on your iPhone to play (App is not tuned for Android accelerometer data yet).
Visit it on your browser to get started, then on your iPhone to play (App is not tuned for Android accelerometer data yet).