He claims " 54% of the 45M devices are in the US which means ~ 25M devices. The US has about 300M people. That means about 8% of the general American population has one of these devices."<p>However, this doesn't take in account broken phones or people upgrading iphones (and then not cycling the old phone back into the market place).<p>I would guess this number is 30% higher than it should be, at least.