True optical mouse
I recently had an idea for an Android app, and possibly accessory. Turn on the flash LED and use the camera like the sensor in an optical mouse, to detect motion compared to the table. This might require a custom case with a lens and spacers. I would pay money for this, and I bet many others would.
Sorry if I am posting in the wrong section.
Nokia N93--semi-broken main camera, broken wifi, sold
HTC G1--Rooted, dead camera, dead keyboard, dead wireless radio, semi-working SD slot
Samsung Vibrant--Rooted, unlocked, fried internal storage, can still run off SD, currently a backup device
Motorola Atrix HD MAXX--Sim and BL unlocked, EB40 modded
Hacking your own gadgets is not a crime. If you buy something with your hard-earned money, it is yours. Hack it. Mod it. Don't let software locks get in your way.