I totally agree, there are a lot of ways to get a game to TV these days (and many more coming). The difference here is that we would be talking HTML5 games. And the controls could take advantage of your phone's touchscreen and sensors.
Also, if the Chromecast succeeds in gaining major market penetration, that would be another big reason to find more ways (like games) to repurpose it.
Also, if the Chromecast succeeds in gaining major market penetration, that would be another big reason to find more ways (like games) to repurpose it.