The AP's Bruce Meyerson today looks at sprint nextel's new $120-a-month plan, currently limited to the San Francisco area, that features unlimited call time, unlimited text messaging and unlimited Internet access.

"While not inexpensive, the unusual approach to pricing wireless service could carry profound consequences for the industry if it proves popular and Sprint decides to roll it out nationally," Meyerson writes.

Meyerson notes that a user's savings on the plan would depend on their usage, as well as the price of the plan they're switching from. "Sprint already offers unlimited text messaging packages starting at $10 a month and unlimited data plans starting at $15 a month," he writes. "The trial package can be expanded to include unlimited wireless Internet access for a laptop for $30 more, half the usual rate, for a monthly total of $150."

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