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What would be the advantage of using the iPhone as a touch terminal in sales? The current low-tech version is an RFID chip inside credit/debit cards that you touch to make purchases. As everyone has at least a debit card, wouldn't it be a lower overhead for shops to implement touch purchasing for cards, rather than for phones?

You don't get it.

RFID is a marginal success with not much adapation in the USA. From that, there is massive efforts to create "non control freak RFID" solutions. Apple is a master at this. IMO, RFID will be rebranded to something like "RFdata" or "RFflash" where there is peer-to-peer exchange of data off very inexpensive RFdata devices into mobile devices.

The beat goes on.
 
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