Meanwhile, WP8.1 users will have their hands on new apps for separate video and music, podcasts, a new layout for the default camera, and the recently rebranded OneDrive. The recent leak revealed the smartphone OS would begin a merger with Windows RT.Īlong with a more unified mobile OS, Windows Phone 8.1 will also supposedly reassign the back button to slip apps in the background rather than closing them outright. Last week a developer on Reddit revealed an almost complete overhaul is on deck for Microsoft's mobile OS.