The reason: Coin’s release is now set for the spring of 2015 — only a few months before retailers in the U.S. will be encouraged to stop accepting payment cards like Coin’s that don’t have new embedded computer chips meant to make cards harder to clone. By October 2015, retailers will begin assuming risk for fraudulent purchases in their stores if they do not use a new type of checkout equipment designed to accept these new, harder-to-clone credit cards currently being issued by banks. Coin lets you add payment info from various debit and credit cards into its app and then sync that with one universal digital payment card so that you can toggle through different payment options at checkout. The problem for Coin customers, who paid $55 to preorder the card during a crowdfunding campaign last year, will be that the card doesn’t contain one of the new chips meant to make cards more secure; it needs to be swiped. Merchants will still have the equipment to accept swiped cards next spring and Coin believes they will do just that.

http://recode.net/2014/08/26/the-coin-cards-problems-may-extend-far-beyond-delayed-shipments/