Given how much the world has already noticed that instant messaging can be cheaper than SMS, it's surprising to see the founder of WhatsApp trying to persuade carriers that he's actually doing them a favor. In an interview with Reuters, Brian Acton said that his messaging service is "facilitating a broad movement to data plans," from which carriers "stand to benefit quite substantially." While it's certainly true that smartphones and data plans make nice margins for operators, Acton's thesis also slithers around some slightly inconvenient evi
