It's a prisoner's dilemma. The Android ecosystem and all its inhabitants would do best if everyone kept the proprietary customizations to a minimum. But any o

It's a prisoner's dilemma. The Android ecosystem and all its inhabitants would do best if everyone kept the proprietary customizations to a minimum. But any one manufacturer can stand out from the crowd by doing stuff like custom skins. Which means that someone inevitably will. So everyone has to follow suit, and everyone ends up being worse off because the end result is a difficult-to-support, fragmented ecosystem.