Apple® today announced it has sold over four million of its new iPhone®
4S, just three days after its launch on October 14. In addition, more
than 25 million customers are already using iOS 5, the world’s most
advanced mobile operating system, in the first five days of its release,
and more than 20 million customers have signed up for iCloud®
via businesswire.com
I can’t even imagine the logistics involved in distributing four million units over the course of a weekend. 25 million people downloading the OS upgrade is also impressive (though they had some problems in the beginning). I do wonder though how many iPhone users there are. How many percent of the user base is 25 million?