Comment by kjullien

Not Amazon but drone delivery is becoming a thing, a startup called Zipline is currently (successfully) running trials in Rwanda of drones that are used to deliver blood to hospitals where it would never be able to arrive in a timely fashion otherwise (because of terrain, poor access etc). From what I remember delivery time was about half an hour. It is however clearly not as elegant a solution as Amazon was proposing with their quadcopters, Zipline uses scaled model airplanes with an old-school tail catch system for "landing" (same concept on aircraft carriers). Not "elegant" but certainly gets the job done. I know I saw a YouTube video covering this recently but cannot find the link sadly.