Et tu, Amazon (AMZN)? Now that PayPal, Groupon, Intuit, and VeriFone have all launched would-be...

|By:, SA News Editor

Et tu, Amazon (AMZN)? Now that PayPal, Groupon, Intuit, and VeriFone have all launched would-be Square rivals, TechCrunch reports Amazon is working on a mobile card reader of its own. The reader might offer a rate as low as 1.9% (well below Square's 2.75%), and could leverage both Amazon Payments and the company's huge base of third-party sellers. But will major retail chains (Amazon competes with quite a few of them these days) have any interest in signing up?