Recently, iPhone's exclusive U.S. carrier AT & T's network faced a growing problem and met with widespread criticism.
In 2009, AT & T's iPhone, the user continues to increase, while in the big cities users have encountered serious problems of network congestion. It is reported that this is because the iPhone's hardware defects, it was also criticized AT & T's network infrastructure is inadequate. Whatever the reason is, it is clear that users of AT & T data and call the expensive costs and poor quality of service dissatisfaction.
In the New Year, Google Android mobile phone, Blackberry, and Palm mobile phones go through the innovative Verizon, Sprint and T-Mobile and other competitors enter the market. Therefore, AT & T there is only two choices: either a radical improvement in its network services, or to allow iPhone users to switch to other operator's network services.
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