Chip and pin...

There's always talk of mobile money - "digital wallets on the mobile". But, as my CFO friend at a major operator remarked, who's going to upgrade their EPOS systems so that people can buy things with their mobiles? What's the business case?

I wonder if the chip-and-pin recepticles being deployed in most stores allow a card to be inserted that can connect with a mobile using Bluetooth over ultra short range? Would a BT chipset and antenna fit inside a chip-and-pin card?