Groupon (NASDAQ:GRPN) has restaurants in its sights with a new point-of-sale service called...

Groupon (NASDAQ:GRPN) has restaurants in its sights with a new point-of-sale service called Breadcrumb that runs on iPads. The company charges a sliding monthly fee for the sales and ordering system based on how many iPad terminals a location will utilize. The ultimate goal may be to nab payments, but for now participating restaurants can use their existing payment methods.