Square Payment System for the iPhone, iPad and Android has gone live on respective platforms. Those who sign up for the service will receive a free card reader that pops into the 3.5mm headphone jack. The app is a free download from App Store and Android Market.Watch the video demo below:
Square, the developers of the iPhone payment system, opened a public trial of their solution. If you're interested in participating, just sign up here. And be sure to watch the explanatory video below.