Raghu,

Have you tried your optical mouse on a mirror? Mine works on those. The optical sensor pickups up small surface textures including scratches and small bumps on glass.

I agree that cords are a pain. Wireless mice just replace the pain of a cord with the annoyance of replacing batteries, though. While not major, perhaps someone can invent a solution? Maybe a mouse that generates power from movement, kind of like the watches that are powered by being shaken..

- Lee