This looks like a tiny little thing that could possibly improve your iPad/tablet experience. These thin silicone-rubber rails adhere to the back of your device to keep it from slipping or scratching. While I’ve not used or seen these in person, it looks to be a smart idea with minimal impact to your device (and wallet).
Available from Bluelounge, 11.95.
Adheres to your device using a light 3M adhesive.