If you would like to know more information, feel free to visit these websites:
_
http://www.life123.com/technology/home-electronics/cell-phone/when-were-cell-phones-invented.shtml
http://www.motherearthnews.com/nature-and-environment/cell-phones-of-the-90s-zmaz99aszsto.aspx#axzz2TWG5Mgcx
http://www.webdesignerdepot.com/2009/05/the-evolution-of-cell-phone-design-between-1983-2009/
_
http://www.life123.com/technology/home-electronics/cell-phone/when-were-cell-phones-invented.shtml
http://www.motherearthnews.com/nature-and-environment/cell-phones-of-the-90s-zmaz99aszsto.aspx#axzz2TWG5Mgcx
http://www.webdesignerdepot.com/2009/05/the-evolution-of-cell-phone-design-between-1983-2009/