A few months ago, Groupon quietly scooped up a New York-based startup by the name of Breadcrumb, which, back then, was presumably regarded as a sign of POS-related things to come from the deal-sharing company. Today, nearly five months after its snappy acquisition, Groupon's officially relaunching launching Breadcrumb, marking the outfit's formal entrance into the point-of-sale game with its own iPad-based sy
