An anonymous reader writes "It appears that humankind has managed to spread cellular technology like a virus. About 2.5 billion cellular connections exist in the world today, according to an estimate from the GSM Association. It took 20 years to reach 1 billion connections, three years to reach 2 billion connections and the market is moving to reach its third billion in a period of just over two years. Not surprisingly, the countries with fastest growth are the 'emerging nations.'"
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