Demo it here: http://www.pubnub.com/developers/demo...
Blog post & tutorial (w/ code!): http://www.pubnub.com/blog/building-a...
PongNub is a second-screen game with a smartphone controller. The controller uses JavaScript and JQuery in a mobile browser, and the game interface uses JavaScript in a browser.
Users can control their paddle in realtime using the control, with Pub/Sub Messaging (http://www.pubnub.com/how-it-works/da...) taking care of streaming the signals.
All PubNub demos: http://www.pubnub.com/developers/demos/
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Music: "ColoR Me," by Vinmara