Meh that won't happen until there are decent alternatives out there. Google's Android isn't such an alternative, and other options aren't supported by all the services people need to use.
It absolutely is. Don't be delusional lol. Here's a video of dolphin running on android: https://www.youtube.com/watch?v=Tp-D4GvUxY4
It's about money, not technical capabilities.
So for android: One time fee of $20, yearly $0 profit
For apple: Yearly fee of $100, yearly $-100 profit