The infrastructure was there years ago already. Google could've accomplished the same.
But Apple's taking it one step further. You can pay directly in the app and it ties with merchants. That's my complaint about Google Wallet a few months ago. I was looking for stuff to eat, and PayPal directly lets you look for vendors nearby and pay for food and even order via Eat24. Google Wallet has none of that. They only introduced Dominos back at Google I/O, but honestly does that matter?
Look at how Apple's integrating with Uber, the way Uber integrates with my CC. Google Wallet had years to get the ball rolling but Google did nothing.