Here's Horace Dediu's estimate for Q3, I doubt the most recent quarter is much different in terms of iOS share: http://www.asymco.com/2012/08/21/the-interloper

Here's Horace Dediu's estimate for Q3, I doubt the most recent quarter is much different in terms of iOS share: http://www.asymco.com/2012/08/21/the-interlopers/ http://www.asymco.com/2012/08/21/the-interlopers/ Looks like 90% ish. Really astounding to see Apple and MS profits side by side like that. From ~10% of MS to nearly double over less than five years.