You'll soon be able to start mirroring everything on an Android phone over to your TV using a Chromecast. After announcing the feature at an event last month, Google said today that mirroring is beginning to roll out as part of an update to the Chromecast app for Android. The app will allow Android users to begin casting the entire screen of their tablets and phones, rather than just individual Chrome tabs and supported apps as they could up until now. Unfortunately, there are a limited number of devices that support mirroring at the moment, though the list does include the recent Nexus line as well as phones from Samsung, HTC, and LG.