That is interesting. Probably reflects the number of iPhone users in the world. I'm not one of those. Funny too that several of my friend, including my wife moved away from Apple to Android.
When it comes to phones, I dislike Apple a lot. That said I have always wanted a Apple Mac Pro, just can't justify the cost.
My mail client Claws-Mail didn't make the list.
I do use the Gmail, Outlook and Yahoo! Apps