Quarter of globe online
There were an estimated 4.6 billion mobile phone subscriptions at the end of last year, compared with about a billion in 2002, the International Telecommunication Union said.
An estimated 1.7bn people were online last year, up from 11% in 2002.
But four out of five people living in poor countries had no access to the internet, with China comprising a third of the people online in the developing world.





