"The notion of unlimited data as devices get more content rich and data intensive means the networks will get overloaded as more smart devices come on line," Gold said. "Network capacity is a limited resource, and like any limited resource, carriers have to find ways to share the resources fairly with the customer -- either through limiting the access, increased pricing for heavy users, or outright banning of abusers -- which is unlikely.
"Right now, Sprint is probably the least loaded of the networks, and perhaps T-Mobile is, too, so having unlimited data offering is feasible," he said. "Ultimately, unlimited data for everyone at a relatively low cost is unsustainable in a limited resource like wireless networks."
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