They claim it is a tap and go system, which it is not. I made my first purchase with Google Wallet. I told the cashier to use credit as instructed. Placed the phone on the pad, the phone wanted my pin number. I enter my pin number and placed it back on the pad. The phone said sent, and I thought that was it. Well the cashier asked me to sign the reciept. I signed it and left. Tap and go NOT. I see this as being a novelty or a fad that won't take off. It's actually easier to use the plastic credit card. At least you don't have to enter a pin number with a credit card.