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When it comes to actually paying, I don't see how there can be a huge increase in convenience over swiping a card and entering a pin. Any improvement will be marginal. So if there's convenience to be gained it must be during the act of shopping. Self-scanning may sound convenient, but it leaves open the problem of verification by the shop-keeper. The portrayed ideal of picking up items, scan them with your phone and simply walk out the door isn't going to happen for obvious reasons. So whichever way I look at it, the added value of an iWallet is going to be extremely minimal.

Have you looked at it this way: How much intelligence can be stuffed into a plastic card, compared to a smartphone?

Because that's where most of the added value comes in.

The smartphone learns your preferences, checks that the store has the goods at the best price, reserves the quantity you want, maybe even has them packaged for you, pays the store, tells them when you're coming to pick them up, receives special discount coupons the store sends to lure you in knowing that special wine you like... The number of possible apps is endless.

Can a plastic card do that?
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