​Amazon reportedly taking on Square with credit card reader - CNET

Amazon's credit card reader is expected to launch in a couple weeks; see Amazon’s Ambition in Physical Retail May Go Way Beyond Payments (January 2014, Re/code) for related speculation

"But an Amazon card reader is not too big a stretch, given that e-commerce giant just this week launched a mobile wallet app. Amazon Wallet, however, is still pretty barebones -- for now it's just a place to store select gift and loyalty cards.

9to5 Mac points to reports over the past year from various sources suggesting Amazon is moving into mobile card reading. And Amazon has long been eyeing PayPal's digital payments crown -- something clearly signaled by the introduction last year of "Login and Pay with Amazon.""

​Amazon reportedly taking on Square with credit card reader - CNET