An anonymous reader writes "A new breed of messaging services and mobile Voice over IP clients like Skype are already eating into carrier revenues according to a new study. '... one-third of carriers are already seeing voice traffic and SMS revenue decline as a result of the increased popularity of third-party solutions. ... For years, Research In Motion’s BlackBerry Messenger service has been one of the top features consumers and enterprise users loved about BlackBerry devices. It took much longer than some expected, but other vendors and third-party developers have finally come out in full force with competing services that provide SMS-like messaging over data networks at little or no cost to the user."
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