There's no need to check out, either from a human cashier or self-checkout.
The New York Times (paywalled article) reports that Amazon, which owns Whole Foods, debuted this new technology at a store in Washington, D.C. When you walk in the store, either scan a QR code with your phone or let a kiosk scan the palm of your hand. Then start shopping.
As you walk through the store, a vast array of cameras track all of your movements. When you put something in your cart, computers add it do your tally. When you're done shopping, walk out the door. Amazon will bill your account automatically. Appropriately, Amazon calls the system Just Walk Out.
Would you use a store like this one?
-via Kottke | Photo: Whole Foods