According to Geneva (2010), the number of using mobile phones always grow up. Right now, there are 4.6 billion mobile phones and at the end of this year , it will increase to five billion people.The number of mobile borad brand subsciptions worldwide also grow up difficult to drop in demand. In rich countries, people like to use advanced technology and handsets. On the other hand, people in developing country like to use health services and banking.
I think, the number of mobile phones always grow up because at this time one person has more than one mobile phone and the price of normal mobile phone is cheaper than in the past. Moreover, parents buy mobile phones for their children so the lower age of people use it.
Reference : Geneva. (2010, February 15). Number of cell phones worldwide hits 4.6B - CBS news. Retrieved November 10, 2010, from http://www.cbsnews.com/stories/2010/02/15/business/main6209772.shtml
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