I've really been interested in this -- especially since Apple is doing the Apple Pay thing (which was one of the major reason I almost stuck with Apple -- they have major credit card company buy-in, which Google does NOT have), but I'm a bit wary of it. For the record, I would have been wary of the Apple pay thing too, but I'd really LOVE to use NFC to pay for things. It's GOT to be more secure than the magnetic strip which, from what I hear, most countries in Europe won't even accept anymore.