Techcrunch:

It’s no secret that Amazon has been eying the in-store physical, retail world. The company is reportedly looking to launch a number of retail stores. A credit card processor and mobile payments device could power payments at these stores.

The competition could get even tougher with Amazon entering the mobile payments market. It is only a rumor though, nothing has been announced yet.

It seems Square’s choice to focus on design and user experience could make the difference.