Mobile card readers like Square and PayPal Here must inevitably offer an EMV-chip card option to U.S. merchants, but how soon is too soon? And what are the consequences of arriving too late? If Square ...

With consumers and small-business owners long accustomed to mobile phones, Square is counting on that familiarity to make its new Square Handheld device an easier-to-use point-of-sale device. Calling ...

Square's partnership with Apple to enable small merchants to accept Apple Pay is just one blip in Apple's overall strategy, but for Square it's a fundamental rethinking of its approach to its audience ...