See the Evolution of Mobile Phones at Cebit

"If you wanted evidence that the mobile phone has evolved far beyond its humble origins then Cebit will provide you with plenty.
Mobiles companies compete to keep up with consumer demands
Mobile phones are everywhere in Hanover - on huge billboards, in the hands of demonstrators, photographed by the journalists and cooed over by geeks and fashionistas alike....
Article Courtesy of The BBC (click for full article)
