Why disappointed? Because mobile platforms are not designed to do anything critical. Take for example this excerpt from the End User License Agreement of iOS 7:
Something seems wrong here.
My sincere hope is to start seeing the FDA enact and enforce security in devices which are certified for use as life-dependent technologies. Why are our automated heart defibrillators and insulin pumps allowed to operate in a way that makes them open to malfeasance and misoperation?
But as a first step, it would be nice to see the FDA either publicly acknowledge or publicly condemn the use of 'smart' devices that are not licensed for use as medical diagnostic equipment.
There is an implicit 'publicly acknowledge' taking place with this most recent announcement. It makes me wonder: what will happen if a misdiagnosis results from a smart device app? From the EULA, it appears that the doctor would be liable (he or she agreed not use the device for this purpose), but the FDA announcement is simply muddying the water.