My local Giant has this already, but isn't tied to my phone. You just scan as you go, and then pay at the end. It is cool, but I'm not sure it's much faster. A

My local Giant has this already, but isn't tied to my phone. You just scan as you go, and then pay at the end. It is cool, but I'm not sure it's much faster. Also, I have to wonder about theft. How many people are just throwing things in the cart, and not scanning?