An employee displays an Apple' iPhone 4s (L) and a Samsung's Galaxy S3 at a mobile phone shop in Seoul on August 27, 2012. More than a third of the world's population is online while mobile phone ... more 

An employee displays an Apple' iPhone 4s (L) and a Samsung's Galaxy S3 at a mobile phone shop in Seoul on August 27, 2012. More than a third of the world's population is online while mobile phone uptake increased by more than 600 million in 2011 to around six billion, a UN agency said Thursday less