Amazon said (
http://www.bbc.co.uk/news/technology-25180906): "from a technology point of view, we'll be ready to enter commercial operations as soon as the necessary regulations are in place."
Yeah, maybe if the regulations come into place in 20 years from now. I really
don't believe this system could work autonomously. Collision of the drones
with each other could be easily avoided by some technical system but what about
picking a landing site, landing there without hitting thin wires or people and then ringing the door bell? Or will the drone drop the payload on the pavement so anybody can pick it up? It could maybe work if the customer would pick a safe landing site in his garden or so, but that would require customers to stay under a certain stupidity threshold in order to prevent drone loss
