This $14,000 wireless spycam purportedly climbs all sorts of vertical surfaces. I wish I could see a video of it in action.
"A revolutionary, new remote controlled (R/C) robot. The SpyBot Climber easily scales many smooth and uneven vertical surfaces – wall board, plaster, brick, cinder block, and siding are negotiable for this versatile robot. It can even go across sturdy ceilings if placed there first – although it can transition from a horizontal (ground) surface to a vertical one, and back, it can not go from a vertical to an inverted surface or directly around corners unassisted."
Link (Via Sensible Erection)
