Square, which is upending the payment-processing landscape (I, II) with a low-cost,...

|By:, SA News Editor

Square, which is upending the payment-processing landscape (I, II) with a low-cost, easy-to-implement platform that relies on mobile devices, is rolling out Square Register, an iPad app that attempts to be a fully-fledged cash register replacement, replete with employee permission controls and in-depth transaction analytics. Square adds it's now processing $4B/year in transactions, up from $2B in October.