From CNBC:

For more on the winners and losers, let's welcome director of the Institute for Money Technology and Financial Inclusion at the University of California, Irvine. Sir it's good to have you. It's good to be here. Thank you. Is that the key in all this so Starbucks adopts it but what happens when a much bigger, wider reaching retailer joins this parade? You know that's really the big issue. I think we have to keep in perspective that this is Starbucks, not a conventional retailer but rather a quick service restaurant that's all about getting people through that line. Right? The interaction at the point of sale at a Starbucks is pretty straight forward and simple. You've got relatively few products, your point is to get people moving along. You know, you're not -- it's not like a Safeway or a supermarket where you have to weigh vegetables and deal with things like other methods of payment like eleven trokic benefits transfer or something like that. Until we see main stream retailer adopting mobile technology at the point of sale i think we're going to be limited to some niche things.

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