I love this idea, but I don't think it would solve one of the biggest reasons why I would want something like this:
Royalty Cards. I simply don't use them because that's way too many cards to have in your wallet. But say I'm at a restaurant, without coin, you give the waiter your credit card and your royalty card. With coin, do you make him run back twice so you can hit the button to switch from your credit card to your royalty card?
I guess you could get 2, one for credit / debit cards, another for royalty cards, but that seems to start defeating the purpose.
I will get one for loyalty cards only, will reduce major clutter. For credit/debit transactions, Canada has high penetration of chip/pin terminals and Coin will be useless here.
Royalty Cards. I simply don't use them because that's way too many cards to have in your wallet. But say I'm at a restaurant, without coin, you give the waiter your credit card and your royalty card. With coin, do you make him run back twice so you can hit the button to switch from your credit card to your royalty card?
I guess you could get 2, one for credit / debit cards, another for royalty cards, but that seems to start defeating the purpose.