AllCast developer Koushik Dutta has hinted that he could do more with Chromecast than just queue up media, and he now has a demo video to prove it. The clip (below) shows Dutta using Googles peripheral to mirror an Android phones screen on a TV, much like you might with Miracast (or an Apple TV, for that matter). Theres some noticeable lag, but the frame rate is smooth enough to reproduce a couple of rounds of Flappy Bird.