After a few initial hiccups, my wife is sold on Walmart's grocery pickup service. For short-range delivery, they are also experimenting with "terrestrial drones

After a few initial hiccups, my wife is sold on Walmart's grocery pickup service. For short-range delivery, they are also experimenting with "terrestrial drones"[1] which I have seen around town once or twice. 1. http://www.chainstoreage.com/article/different-kind-drone-rolls-walmarts-backyard http://www.chainstoreage.com/article/different-kind-drone-ro...