A symbolic moment, this: in Q4 2013 the number of computers* sold by Apple was larger than the number of Windows PC sold globally. If you add Windows Phone to the mix they're more or less exactly equal. 

This is a pretty good illustration of the scale of mobile: Apple limits itself only to the high end of the mobile market but still sells more units than the whole PC industry. 

(*Macs, iPhones, iPod Touches and iPads) 

The comments to this post were entertaining but not very valuable, especially since almost all of them made complaints about things that weren't actually said. So I've closed comments.