The big news today from PayPal was a tiny credit-card reader called PayPal Here. It lets any small business owner with an iPhone or Android phone take credit card payments.
But there was actually a far more interesting technology shown today.
It lets you walk into a store and buy a product without touching your phone, money, or a credit card -- or even taking your wallet out.
Like the credit card reader, it's pretty obviously inspired by Square, whose Card Case app was introduced about six months ago. But I never actually got how revolutionary the concept of touchless retail payment was until I saw it in action today.
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