[athom]

Is that five billion individual owners? That's pretty impressive! Current estimates put the whole world population at just under 7 billion.

http://www.census.gov/main/www/popclock.html has it at about 6.8B, and a Google search on "current world population" turns up similar figures.

[iuyhgtfvgbhjn]

Last stats I saw showed that for W Europe the average user had owned >5 handsets.