Here is a device designed to carry your credit card information to save you from having to carry a fat wallet everywhere you go. Coin syncs with your phone to hold up to 8 cards. The companion app can hold an unlimited number of cards. You can use Coin wherever cards accepted.
If you lose your Coin, it will automatically lock your data. You can see its last known location on your phone. You can protect your cards by setting up a Tap Code. The device will ship in August for $100.