Innovation, creative thinking that just might save our species from extinction or at least stop the most antisocial "faceless" trend in history...not to mention, save your device from a electromagnetic event.
Humans have survived and thrived this long because of our natural mutuality and desire to congregate Face to Face.
The waves are in the 33cm (3*10^8 m/s / 900 MHz) range. If the door is open, they come in. Soon there will be a protocol that allows people mobile devices to be repeaters. Someone standing out the door has line-of-sight (LOS) to a base station, and they forward those packets in to all the people inside the cage. I miss having conversation uninterrupted by mobile devices, but I can't resist the urge to push right up to Shannon's Law--moving the max number of bits with as little energy as possible. Information finds a way!
Humans have survived and thrived this long because of our natural mutuality and desire to congregate Face to Face.