Coin gadget can replace every credit and store card in your wallet

It promises to replace all your credit cards with a single slim, digital card. San Francisco firm Coin first took the internet by storm last year when it revealed the $100 card. Now, it is set to let the first customers test the gadget that could take over your pocket. The Coin card is that is uses a magnetic strip like any regular credit or debit card. However the information on the strip can change depending on what card the customer wants to use.