It might not be to far off in the future when that new phone or gadget you order arrives at you home not in the mail or by truck, but drone. A Chinese delivery company, SF Express, is experimenting with delivering packages using air drones that can reach remote areas.
Using a built in navigation system, the unmanned aerial vehicles (UAV or drone) can reach an altitude of about 100 meters (300 feet) and can be program with an address to which it will deliver the package.
While the idea of using drones for non-military use is not new, we have yet to see any widespread commercial application for something like deliveries. There are quite a few issues that need to be worked out, such as making sure there is someone at the destination when the drone arrives.
It will be interesting to see how well this catches on in other countries and with other carriers. For instance, in 2012 the United Parcel Service (UPS) delivered 2.3 million packages or documents every day in the United States. That's a lot of drones floating around all at once.