"Q. What is a Coin?
A. Coin is a connected device that can hold and behave like the cards you already carry. Coin works with your debit cards, credit cards, gift cards, loyalty cards and membership cards. Instead of carrying several cards you carry one Coin. Multiple accounts and information all in one place."Leveraging the existing card form factor and transaction process (aka the swipe) is really smart. I'm surprised it will only store 8 cards at a time on the Coin.
From a hacker's point of view, this is great news also.
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