This is also the major disadvantage for anyone new coming into this space. Apple got to launch their incomplete-but-solid product and then spend a year or two

This is also the major disadvantage for anyone new coming into this space. Apple got to launch their incomplete-but-solid product and then spend a year or two refining it and incrementally adding features. That's the advantage of redefining/creating the market you launch in though, it doesn't extend to anyone else. For anyone trying to compete with them now, they have to hit the ground running with a comparable-or-better feature set (which I assume is why Android vendors make so much fuss about Flash) _and_ comparable polish.