What I want now is an open source Android device where I have controls.
The #1 things I want to control is app permissions. I should be able to shut them down. If an app "needs" my location, it should get a random spot in the world. If it "needs" my contacts, it should get an empty list. If an app "needs" my network, it should see that it's offline.
The #2 thing I want to control is data going out.
#3 is having security updates forever, rather than sudden EOL with no notice.
I think someone should fork Android and do that. Ironically, I think several Chinese companies are well-positioned to do that, from a market perspective, but not from a cultural perspective.