I have to post this for my brother who has been telling me for a couple weeks I should develop a mouse that fits on your finger. The idea as he proposes it is a bit different than what Logisys is offering. Their offering is a laser mouse with 800 dpi resolution. A velcro strap attaches it to your finger, and there are two buttons and a scroll wheel positioned where you can access them with your thumb. It connects to your system via USB. Being a laser, it should work being moved over any surface, other than glass. All well and good, and for $19.99 not too bad if you want that mostrous thing strapped to your finger.
Now the million dollar idea I am being hounded about would essential be to miniaturize the electronics so it is much smaller, make it a gyro mouse so you don’t need any surface for it to work and make it Bluetooth while you are at it. That is my winning proposition.