Talk:Worn device
I wouldn't base so much emphasis on worn devices. Ok, if we can arrange for information to be delivered to a worn device, that's great, but maybe leveraging on existing devices (ie. PC at home) and infrastructure (ie. Internet for delivery) we will be getting to implementation a lot faster then with the "techno-gizmo of tomorrow"-approach.
Take for example the fact that many cards (some are evil, used to AI analyze purchase patterns to optimize pricing and placement to reap the maximum profit) are swiped at the check-out cashier and the implementation effort (and cost) would be minimal if those cards conveyed an email address (or other drop-box distribution method) where the digital receipt of the purchases would be delivered to, naturally containing the GTIN codes of the products purchased.
This would be a form of Post check-out Consumerium that requires no additional hardware for the consumer, a simplification compared to Check-out Consumerium in which NFC (or Bluetooth) would be used to transmit the digital receipt to the consumers worn device, most likely a cell phone or PDA
Perhaps a Consumerium card could be arranged that only contains an email box where to send the digital receipt