I don't like wireless keyboards/mice.... and optical are okay, but they don't tend to like my choice in mousepads lol (though I recently got a new one).
I've seen optical trackballs, too. You don't move the ball, it can see your thumb rolling over a stationary orb-thingy. Freaky if you ask me. Had little spots all over it... Saw it at Best Buy while searching for a little handheld trackball for my laptop.
I've seen optical trackballs, too. You don't move the ball, it can see your thumb rolling over a stationary orb-thingy. Freaky if you ask me. Had little spots all over it... Saw it at Best Buy while searching for a little handheld trackball for my laptop.