http://ads.x10.com/internetfuel/inf4_neleh.htm

They have been around for a while. They are a good idea actually...

Those are fun to mess with. It could be used by investigators to look into your house, if you've already installed some yourself. People have used those cameras to watch their babysitters, etc from work or whereever. But the funny thing is, it's trivial for anybody to see (your kids! you naked! you doing someone!) the image that the camera sees because it's trivial to watch the signal. They aren't encrypted or anything.