I think not only Amazon is investing in this. Some delivery companies in China are already playing with drones for while: http://www.businessinsider.com/packag

I think not only Amazon is investing in this. Some delivery companies in China are already playing with drones for while: http://www.businessinsider.com/package-delivering-drones-start-trial-runs-in-china-2013-9 http://www.businessinsider.com/package-delivering-drones-sta... So why is this so surprising?