The video above is a demonstration of AirPlay Mirroring Angry Birds from Cyanogen Mod. Koush is the developer that has put in the work. Hopefully this can be a full on feature of stable Cyanogen Mod. Google Chromecast integration was in the works in CM but licensing issues tied Koush's hands and we haven't seen much more on that development front. I would love to see mirroring to the Chromcast, but even some of the features that had already been built like chrome browser mirroring would be nice.