If a diabetic s system goes into imbalance, he shows up in a hospital with insulin shock. These episodes are economically disastrous for insurers and dangerous for the patient. It turns out that there is a simple solution. A wireless camera that sends occasional images from the kitchen sink can show whether a person is washing his dishes regularly. If the camera suggests that eating patterns are out of whack, that may indicate the patient is going into shock.
Medical staff can call the patient and head off the problem.
All they get are verbal reports, which are incredibly unreliable. Wireless devices could change all that. The real risk with wireless, in addition to building inflexible systems, is aiming too low. What killed WAP is that it was designed as though cellphones would forever be as stupid as they are today. We know that silicon keeps getting better, so cellphones will develop into very powerful computers.