In what could be a disruptive move in the smartphone market, Cricket Wireless announced Thursday that it's offering the latest iPhone models under a prepaid plan. Subscribers to the plan will have to pay full price for their iPhones -- $499 for a 16 GB iPhone 4S or $399 for an 8 GB iPhone 4 -- but will get unlimited voice, texting and data for $55 a month, with no contract.


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