OK, Chromecast fans. Add another supported app onto the list. HBO has just updated its HBO Go Android app to support Chromecast. 

And ... well, that's about it. Fire it up just like you would any other Chromecast stream, and you're watching HBO on your TV, through Chromecast. You'll still need an HBO subscription, of course. And some sort of Android device. And a Chromecast. But other than that, this is pure magic.

More: Chrome blog; Thanks, Matthew and Rob!