How often should you wash your bathroom towels? And what about the bathroom rug? Should you wash it every week? Every couple of weeks? The cell phone markets have become saturated, leaving the wireless companies little choice but to search for new, untapped markets....

How often should you wash your bathroom towels? And what about the bathroom rug? Should you wash it every week? Every couple of weeks? The cell phone markets have become saturated, leaving the wireless companies little choice but to search for new, untapped markets....

The cell phone in all its iterations — from pre-paid to smartphones — has become common throughout the world. According to the United Nations’ telecommunications agency, the ITU, there will be over 5 billion mobile phone subscriptions by the end of this year. The cell...