I remember Jeff Bezos, the head of Amazon.com, patented smartphones and tablets with a foldable air bag (like
As you can see, no pillows or even mythicalwings. Only a small can of compressed gas. The site is very vaguely explained why the hell this capacity. They write that during the fall the sensors will be scared to say what speed to calculate the approximate range and speed of fall, after which this fellet and the already existing standard vibration motor are activated in order to change the angle of incidence during the flight - in this case the phone has more chances to survive by falling either on the back or on the side panel (although I suspect that the glass still cracks a little). Also on the site for registration of patents there are a bunch of other methods of protection, invented by Cupertino. For example, a special grip for the headphone plug, so that the device just hangs on the wire after free flight down.
A source: Cnet