I don't see how this really has much to do with Bitcoin. It simply enables people to make payments with smartphones instead of credit cards. Bitcoin is a totally different concept.
Google could open it up so that you could pay in bitcoins. It would be a HUGE help if they did this, even just to make bitcoin a credible currency. Any store with the readers, you could use bitcoins. Of course you would probably have to deposit them into a Google account first, and your anonymity is gone, but it creates a way to finally use bitcoins in a brick and mortar store.