Chromecast updated is its new ability to allow any Android device to be mirrored, wirelessly, onto a TV. Google built its own framework for this, allowing it to cut down on the latency.

http://techcrunch.com/2014/06/25/chromecast-update-introduces-an-airplay-like-android-mirroring-feature-photo-backdrops-and-more/?utm_campaign=fb&ncid=fb