Click the arrow at the top of the page and your note expands to fill the screen or see the normal interface. OneNote has an even more extreme view that hides everything but the notebook picker (and the button to get the rest of the interface back), leaving you the full page to take notes on - ideal on a tablet. This duplicates the little arrow on the ribbon that collapses the commands, but it's easier to find if you don't already know how the ribbon works. Instead of just hiding the ribbon, status bar and most of the rest of the interface to enable you to concentrate on your document (as it did in the Customer Preview), this now brings up another mini-menu letting you choose between hiding the ribbon, only showing the ribbon tabs or showing the full ribbon.
