Postmates has revealed a cute autonomous delivery robot called Serve, which seems to take a design cue or two from Wall-E, with its big eyes and yellow finish. While the company has tested third-party autonomous delivery options in the past, it decided to build Serve from the ground up. When Serve shows up at your front door or office, you'll use your phone or a code to unlock the compartment and retrieve your items. The robot can carry up to 50 pounds of goods and can travel up to 30 miles on a single charge. Postmates also plans to collect items with Serve (especially in busy areas) and return them to its delivery hubs so delivery drivers can bring them to you. Serve uses Velodyne Lidar and cameras to help it navigate, and Postmates claims it safely moves alongside pedestrians at walking speed and navigates obstacles such as fire hydrants.