RMS once agreed that OSS tools were inferior, but he only used OSS tools because by doing so (and contributing code and +1 userbase) he was working towards a future where the OSS achieved parity or became better. Same for all these other arguments. "But only Apple makes iPhones" is true, but ignores the greater market impact.
Besides, I fear that with the death of Palm and the increasing distaste towards WinMo (and the continuing stillbirth of Android) that the lesson carriers are learning is that closed is better.