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I love the concept. What if the cashier's finger brushes the button, and now I just expensed lingerie on the corporate card?

Also, I wonder if there are any plans for chip-and-pin. A swipe-card is very out-of-the-ordinary in the UK and Europe, I've found.

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According to their FAQs, they do plan to implement chip and pin (EMV) in future devices. Not sure how - I would be shocked if EMV could be tricked into exposing cryptographic secrets.

Mind, regarding skimming, the FAQs also say "You can only add cards that you own to your Coin." That sounds more like an instruction than a technical limitation. If there are things like this that they've not thought through, pretty sure EMV will never happen.

Also according to their FAQ, if your soufflés keep collapsing, you should add a little lemon juice to the béchamel. This strengthens the mixture and prevents tragedy.

I thought it was a cute touch. :P

It's a button that requires more then physical contact. You have to actually push it.

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