Android's open enough for me, but what I find unhappy is that Google seems intent on tricking people into revealing more and more information. It often reminds me to turn on history tracking, despite having said no many times.

Every time I use the Play store, it tries to get me to enter a phone number. The way it does this is by popping up a dialog, with no buttons except continue. It makes it look like you MUST do this (there's no indication you can back out), even though it's optional. That's deceptive.

And of course, the idiotic permissions system. Want to check to see if a user's on the phone? Gotta also get access to who they call and their IMEI and other permanent identifiers.

Basically, all the time I'm on my Android device, I feel like I've gotta be extra cautious, that Google's out to screw me over. Unfortunately, MS is just flubbing their system by pumping it full of crap. (They were paying devs in 3rd world countries $2000 to push out junk apps. They refuse to take down garbage/scams. They even published fake Windows Updates on the store, and other stuff that falsely claims to be by MS.) MS could fix it all immediately by offering Android app compatibility. I'd switch in a minute.

I use Firefox as my browser, mainly because of this. I wish I could switch to another smartphone platform.