Aside from its iPhone sales, and total iOS device sales, another stat Apple likes to tout is its number of iTunes accounts. At the beginning of the company's WWDC keynote earlier this week, Tim Cook announced that there are now more than 575 million registered iTunes users.
Cook claims that iTunes is the largest online service with credit cards connected, which is pretty impressive. But perhaps even more impressive is its staggering growth rate. A new report from expert number-cruncher Horace Dediu claims Apple is adding 500k accounts per day...