Paper or Plastic: The Age of Cash is Over

Remember those Visa commercials that show the one guy slowing down everyone by using cash? Who carries real money these days? Let's face it, we're a plastic society. Twitter co-founder Jack Dorsey hopes to bank on this trend with his new company Square which allows merchants and individuals to accept payment from credit (and other) cards using a mobile phone. With the growing popularity of smartphones I predict that Square will be a huge hit.