Pay With A Fingerprint
A French supermarket tested this recently. Instead of paying with a card, you pay with a fingerprint. Well, information is exchanged between the fingerprint reader and the credit card - which you still have to have on you, less then two metres away. "The customer's biometric print is stored in the chip of the credit card and information is directly sent to the fingerprint reader without passing through a centralized biometric database. This ensures the customer's privacy and makes the system theft proof, according to Natural Security, the company behind the idea." Interesting.