Also, Google do some kind of scanning of applications you want to install (optional), last time i checked, so that would probably limit the distribution potenti

Also, Google do some kind of scanning of applications you want to install (optional), last time i checked, so that would probably limit the distribution potential even further. AFAIK, Google's services have root access to the system (they can freely download .apk, install them silently and more), but rogue apps would need a 0day on non-rooted phones,