Card.io for Android and iOS is out now

1. Start card.io application
2. Hold the credit card in front of phone's camera and let the app scan the card
3. Enter few detail for the card (if necessary)
4. Start accepting payments
5. In case, the card is worn out, there is an option to enter the data manually

Yes, it's that easy. This app is now available for Android and iOS users. Do note that this app required Android 2.2 or higher and for iPhone users, iOS 4.0 or higher is required. There are few problems though (reported by theverge.com).

• Individual transactions are limited to $999.99
• Earnings are deposited a week after the initial payment

Note: There's no contracts, setup fees, or monthly fees. You only pay when you charge a card. Pricing is 3.5% plus 30 cents per transaction, and charged amounts are paid to your bank account or PayPal account after 7 days.