You could buy a lot of coffee with $25 million; that's how much money Starbucks is investing in Square as part of a deal to incorporate the mobile payments startup into its store systems. Starting in the fall, Square's Pay with Square app will be enabled for Starbucks purchases, and Starbucks will begin processing all its credit and debit card charges through Square.
While the existing Starbucks payment app will still be supported, the expansion of payment options with Square and the connection to Square's Directory of merchants using the system will push rapid awareness and adoption of the credit card acceptance platform.
Square founder Jack Dorsey (
