It sounds like a high-school math problem: You have 250 megabytes of data left on your smartphone plan. For the rest of the month, you plan to spend four hours a day checking Facebook, e-mail and YouTube. At that rate, will...
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Photograph by George Frey/Bloomberg
Mobile carriers now want customers to manage their megabyte usage, but a startup is pushing a different approach.
Coming to a Mobile Plan Near You: Pay Just for E-Mail or Facebook
