The number of personal portable devices sold each year is increasing rapidly. Cell phones
are ubiquitous. Worldwide sales for 2007 are shown in Figure 1.1 [1] . The mobile phone
industry is currently the largest consumer electronics (CE) segment in the world. The cell
phone has replaced the personal computer as the most universal piece of technology in
our lives. Industry analysts indicate that cellular phones are outpacing personal computers
at the rate of 5 to 1.
Mobile subscriptions worldwide
30 June 2007
Market share at 30 June 2007
Others: ...
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