Google Chromecast gets a little more useful today as the HBO Go application for iPhone and iPad has been updated with support for Google's $35 dongle. You'll need to be a HBO subscriber, of course, but otherwise fire it up and you should be good to go to beam stuff over to your Chromecast.
Google says the HBO Go web app has also been updated with support for Chromecast, so should you be using it in the Chrome browser on your Mac or Windows PC you'll be able to watch HBO TV shows, from your computer or iOS device, on your TV. Of course, HBO on the TV is exactly what we've all been waiting for. Oh, wait.
Perhaps not quite the future we hoped for just yet, but it's a start. And there is Game of Thrones, which is always awesome.