The ultimate, yet-to-be-realized killer app of a tablet would be to act as large drawing, editing, and writing surface in augmented reality -- and a cutaway-pla

The ultimate, yet-to-be-realized killer app of a tablet would be to act as large drawing, editing, and writing surface in augmented reality -- and a cutaway-plane viewer. Currently, it's mostly used (1) to consume content, (2) as a large touchscreen input device for skeuomorphic apps, and (3) as a drawing tablet.