Apple needs to wake up and smell the coffee. They'll continue losing mobile market share as long as they have discrete control over iOS and only allow it installed on their specific product lines. Android saturation will grow since Google doesn't dictate that it be installed on a limited product line.
If you don't think that samsung (and even google) will move to lock down their devices to secure the revenue stream then you are naive.
These companies are all the same, Apple just made the move from the start.
Also, I don't think Apple is trying to dominate market share. Though hold a very comfortable chunk and make insane margins on their products.