Starbucks Invests $25 Million in Square

August 9, 2012 – Reuters reports that Starbucks invested $25 million in mobile payments company, Square.  Square technology will reportedly be integrated into Starbucks’ existing point-of-sale hardware and in the future, Starbucks plans to introduce a product that allows stores to use proximity sensors to detect when a customer carrying a smartphone with Square’s app walks in the door.