Verizon Wireless stunned everyone earlier this week when it became the first carrier to bring Android 4.4 KitKat to the Moto X. The update — which came even before Googles own Nexus 4 received it — was a noticeable change from Verizons often sluggish pace of updates. T-Mobile came second in distributing the major OS update to Moto X owners, and today ATT is doing the same for its users. Android 4.4 adds KitKats dialer (minus business search), SMS support in Hangouts, more transparency on the Moto X home screen, and a new way to adjust exposure when using the camera.