The Death of Cash
Tech giants - and startups like Square - want you to use your phone to pay for everything from gum to train rides. Here's how they plan to achieve cash-free nirvana.
Café Grumpy is the kind of hipster hangout that wouldn't deign to trumpet itself. Tucked away on a quiet street in New York's Chelsea neighborhood, it's easy to miss. There's no sign out front, just a frowning face stenciled on a large shop window. And yet when I walked in for the first time, I immediately felt like one of the regulars.