Groupon has launched Breadcrumb POS, new point-of-sale app designed for small business owners that will compete with offerings from companies like Square. The Breadcrumb name comes from the hospitality point-of-sale system that Groupon acquired last year. Breadcrumb POS will exist alongside the company's recently renamed Breadcrumb Pro app, which is targeted at larger retailers like restaurants and cafes. With Breadcrumb POS, merchants can accept payments and manage finances on the iPad. The