At last month's I/O event, Google demonstrated a set of cool new features that were said to be coming to the Chromecast soon. While we may not be able to set custom backgrounds or cast content without being on the same WiFi network just yet, the biggest feature of them all has started rolling out to devices today: Screen mirroring. I've tested it out on my Nexus 5 and Galaxy S5, and I must say, it performs beautifully. Minor video latency is present, but it's pretty quick to react nonetheless, and audio comes through crystal-clear. The feature will require an update to the Chromecast Android... more