Omron has created what it calls "smile measurement software," which rates the amount of happiness that human subject of a photo are exhibiting. On the face of it (ouch!), the applications aren't too obvious: then you consider that this could easily be used by robots to detect their owner's -- and future slave's -- state of mind, even if it is on a rather polarized scale. According to Omron, the subject doesn't even have to be looking at the camera to work, the application is only 50kb in size, and it can run effectively on embedded mobile chips. Just don't go complainin' when your next digicam confirms your worst fears, that yes, your child is emo.