Google is testing a new feature for Android tablets that will let you resize apps freely and arrange them on your screen at will, making it easier to juggle multiple tasks. The “desktop windowing” feature is now available as a developer preview and for apps that support it, you could even have more than one instance open.
Currently, apps on Android tablets open in full-screen by default. When the new mode is enabled, each app will appear in a window with controls that allow you to reposition, maximize, ...