What is Square? Square is an electronic payment service which allows users to accept credit card payments through their mobile devices by swiping the card on the square device attached to the phone (wiki). The idea for the square device was put forward by Jack Dorsey, the creator of Twitter. It consists of a small, rectangular card swiper (a square) that plugs into the audio jack of mobile devices. It also offers super simple software that helps businesses track…    Read More >>