This seems like a really cool concept
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.
Q. How do I get my cards onto a Coin?
A. Our mobile app will allow you to add, manage and sync the cards that you choose to store on your Coin. The process of adding card information to the mobile app is very simple and is done by taking a picture or two and swiping your Coin through a small device we provide you with.
Seems like a cool idea to me.