Not saying you're wrong, but after reaching several hundreds of millions of users, reaching 500 million is not such a big milestone.
Not a big deal.
And btw, if they'll keep their growth at 4% per month, expect 1 billion users on ~ January 2012.
Not a big deal.
And btw, if they'll keep their growth at 4% per month, expect 1 billion users on ~ January 2012.
~ 1/12th of the current population of the Earth, sure. However, (as of a 2009 estimate) there have been around 106 billion homo sapiens to have lived.
Not to diminish the impact of your statistic with pedantry or anything. :)
source: http://www.wolframalpha.com/input/?i=population+of+the+earth...
Joking aside though - He did use the phrase 'entirety of humanity'. On the basis of that, I did not twist his words.
[1] http://www.readwriteweb.com/archives/qq_china_im_web20.php