Very cool concept - I can imagine some really awesome puzzles for this. Using the tablet to scan things is really great, and brings back memories of Metroid Prime :P The throwing never felt like it worked as well as it should, it might have been better to do a single click to lift something. Physics were a little weird in some places, like boxes going through the walls. Finally, you might want to add some sort of indicator onscreen that shows each object's current values.