Walmart Is Developing A Self-Driving Shopping Cart « CBS Boston

BENTONVILLE, Ark. (CBS) – In the future, shopping carts may push themselves. Walmart is now working on a self-driving shopping cart that customers would be able to hail like an Uber – possible through a smartphone app. The retailer filed a patent for a cart that has a motor and video cameras. It would also be able to return itself from customers' cars to the store.