1. I have used iOS 4, 5 and 6, having an iPhone as well as a Nokia N9, and a Nokia 5800 prior to that, for over a year now. I try to always use the iPhone first when on business, because I don't pay for it. Often it fails to deliver, while the Nokias deliver very well. I'd say that the 5800 was still a better phone than the iPhone. 2. 100M people can be wrong, I am not scared of disagreeing with a vast amount of people, especially when I'm right, and in this case I am, since I am weighing the usability of a mobile OS considering my requirements on a daily basis. Also, refer back to the train conversation: I bet the average of those 100M people gauge the speed of a phone by swiping the desktops. I rest my case. All that said, if you particularly prefer iOS, by all means, go ahead and use it.