WM 5/6 was a piece of shit of a great magnitude. You mush be some kind of shill to even pretend it was worth anything. You had to reboot the phone basically on a daily basis to get anything running. The second day the photo app would stop working, the next one the alarm clock and the third day your phone would not even ring when called. I got several of them at the time.
Not mentionning you had to spend your days in the task manager killing the apps that you launched during the last hour to get back some memory and hope to run other apps.
Ah, and updating the OS or apps for that matter would take 205 steps on your computer.
I got an iPhone 1 (a gift) in early 2008 and the difference was just that the shit was working. It was inferior to both my former windows phones in terms of spec (ALL of them save the screen size) but the shit was just running smooth. What a relief! I remember the firs time I updated iOS. I realized the phone had been running for TWO MONTH without a reboot. Whishful thinking coming from WM5/6. And it didn't even have apps !
To all the naysayers that will deny Apple their "revolution", man, there was one and of a great magnitude. But it was not the hardware. It was software that worked on the hardware. This made all the difference.