wtf is an ecosystem. is it a lock-in system? no, it doesn't have to be. is it a single repository/appstore environment? no, it doesn't have to be. is it evil? no, it doesn't have to be. is commercial application bad? no, it doesn't have to be. are farts apps silly? yes, of course. copy what's good from the competitors, don't let what you don't like about them cloud your judgement of the concept and gets left behind when everyone else can see it.