The iPhone can already be used to buy coffee; now it can sell it too. Square, a new venture from Twitter co-creator Jack Dorsey, lets retailers swipe credit cards using a tiny reader that plugs in to the audio jack on an iPhone.
Using an iPhone to collect money is nothing new, and apps like Credit Card Terminal and iSwipe Pro have been around for awhile. But Square marks the first time a card can be physically swiped — and, says a post in Wired’s Epicenter, that also means the ability to accept gift cards.
