Card.io looking to take a different path in the mobile payment race
The way it would work is that developers would use the card.io SDK to add the system to their app, then once in the app when you want to pay for your purchase, you just hold your credit card up to your phone's camera, the card will be scanned and the info entered and sent securely. Card.io wouldn't give numbers, but said that the "vast majority" of card scans will be accurate. And, as far as security, your card info would be sent with 128-bit SSL encryption, and the scanned image of your card would never be stored.
Right now, the card.io SDK is available for iOS, with an Android SDK coming soon. Card.io is most interested in developers in e-commerce, local, travel, ticketing and daily deals to add the functionality to their apps first.