Square founder Jack Dorsey announces via Twitter - his other project working out well - that 1M...

|By:, SA News Editor

Square founder Jack Dorsey announces via Twitter - his other project working out well - that 1M merchants can accept mobile payments with its card reader geared for small-to-mid-sized companies. To put it in perspective, Dorsey notes the total number of merchants that accept credit cards in the U.S. stands at 8M.