kkleiner writes: One of the exciting ideas being tossed around recently at the Xprize Foundation is the creation of an Artificial Intelligence physician that you could access from your smartphone. Want to know if that rash on your leg is poison ivy or smallpox? Take a photo of it with your phone and ask the AI! The possibilities are enormous. Especially for the billion plus people around the world who live more than a few hours walk or drive from the nearest doctor, the AI physician would represent a revolution in health care.