> Both the App Store and Google Play stores I think are basically illegal monopolies. I should be able to install whatever app I want, without having to jailbreak my phone and deal with warranty nonsense from the manufacturer. Just like my computer, which I can also install whatever software I want on it.

Is Google Play doing that now? It used to be that you just had to change an option in settings to "allow third-party software" or something and you could install anything you wanted. It was necessary for the Humble Bundle Android app, among other things. That was years ago, though.