Which is better, huddling around a 5-inch screen or a 50-inch TV? Google is making that answer a lot easier with a few upgrades to its HDMI dongle. Chromecast can mirror your device's screen to the flat-panel in your living room. The stage demo included using Google Earth and even Android's video camera app. Even more than that, the HDMI dongle is getting a little more personalized too. You know those pretty-looking images that populate your TV screen when you're using the device? You'll soon be able to customize the images of that ambient feed (seen when idle) with your own personal Google+ photo albums.