After many, many promises, HBO Go is now available on Xbox One. The app is already available for Xbox 360 and PlayStation 3, but the Xbox One launch marks the first time the premium streaming service is accessible from a current-gen console. The app supports voice and gesture controls through Kinect, Microsoft says. As always, users will need to have a valid HBO subscription through their cable provider to watch shows, though that's likely change with the launch of the network's standalone streaming service next year.