I can't help but wonder whether quadcopters will be where governments finally legislate control over general computation. Having access to bare metal means nobody can stop inexpensive and socially-disruptive quadcopter applications. How many years before quadcopters join rats and pigeons as the scourge of urban life, always on the prowl for unguarded power outlets or perches on power lines?

Governments and/or corporations have control of the bottom layer of cell phones and TCP/IP networking. Not so for firmware and cryptography, though not for lack of trying.