[JoshuaRedmond]

A lot of the valid issues people have with this concept is about the cost of flying a drone half-way across a city to deliver a single item, but I think that's just the way Amazon are pitching it at the moment. I think it's much more likely that they'll have a fleet of self driving vans with a few of these in the back - it pulls up to the end of your road/block/village and lets them loose for a few deliveries before moving onto the next place. Not quite as fast as the 13 minutes they're quoting, but much more feasible and potentially much faster than a bloke in a van.