Fluorescent light powered wireless cams

I’ve heard about surveillance cameras that don’t need any wires and some cameras are so small that they can fit in your pen. This is something new to talk about a wireless camera that is powered by fluorescent light. This new type of camera was released be Japan's NEC which surprisingly powered by fluorescent light. The camera has a ring-shaped part that attaches to the bulb and gets its power from the magnetic field created by the AC source. And that’s not it. This camera has some built-in 802.11b WiFi capabilities to stream all that video (or, more specifically, an image every ten seconds) back to a PC, which can presumably be used to monitor little things going around and you don't have to run over power cables too. Cool!!! Huh?