It's official folks! HBO Go is here for the Google Chromecast letting you watch all your favorite HBO content such as Game Of Thrones, Boardwalk Empire, Girls and tons of movies and more on your big screen cast from your Android, iOS or Chrome device. You'll need to download the newest version of the HBO Go App from your respective app stores and then you'll have the cast button on the upper right just like in other Chromecast compatible apps. HBO Go joins Hulu , Netflix, Pandora and Google's native media apps in providing Chromecast support. We're still waiting for local content streaming to arrive but we're definitely making progress and HBO Go is an awesome addition.