Now, I’m not one to touch on delicate subjects, but I’ve worked in the medical device field, and a camera like this would sure come in handy for some specific applications. That’s as far as I’ll go on that topic. Misumi is claiming the MO-R803  as the world’s smallest camera, at 4.4mm in diameter and 15mm long. Resolution is low at 320X240, with optional standard or wide-angle lenses. The resolution would seem to limit its application in the medical field, but you never know. Otherwise, I’m thinking of the spy game.