Ahh, the Chromecast. It's one of Google's greatest inventions, but that doesn't mean it can't get better. In fact, it just did. Google just started pushing out the newest update to the amazing little streaming device. This update brings their new Material Design UI elements, which makes it prettier and snappier. That's not all though. Google also included an improved guest mode. It will now let your friends and family share to your Chromecast without needing to log-on to your WiFi. If you've tried out the new update, please sound off and let everyone know what you think of it.