Though I dislike the large bezel it does leave room for game controls if we can get a other half that attaches game controls.

Kind of like this nintendo concept phone
http://www.concept-phones.com/gaming...ing-wii-video/
but smaller with the controllers on the bezel.

So possibilities are for the other half
1) HW KB
2) Extra Battery
3) E Ink display showing selectable image using super low power
4) Artistic covers that interact with ambiance and add consumable or secret special content using NFC and its own memory including holographic images that contain tags or glow in the dark cases
5) Game controllers
6) Solar charger with extra battery maybe from goal zero
7) Liquidmetal super case that keeps bouncing when you drop it
8) Case with kickstand
9) Tricorder
10) Stun Gun
11) Swiss army case includes many pull out tools like vibrating toothbrush and pleasure devices
12) Wireless charging and battery
13) Pico projector
14) track pad or pull out blue tooth dual mouse/headset
15) Case with dock connections
16) Something giving it more power to act as a desktop with dock
17) Alternative charging like kinetic charger or fuel cell
18) Sticky case or mini bean bag for in car on your dash so it wont move
19) Police radar detector lol
20) Self destruct device in case of theft