I think you're absolutely right in saying that Apple has no real competition, but it's interesting to look at the trajectories of the various elements of the sm

I think you're absolutely right in saying that Apple has no real competition, but it's interesting to look at the trajectories of the various elements of the smartphone market and consider what things might look like in 5 years (remember, the iPhone was first available 3 years ago). Android doesn't compete at the same level as apple today, but it is far more likely to start progressing exponentially at some point when the conditions are right. At the same time the barriers to entry for building hardware are quickly falling, so we may yet see some new entrants. Apple's new policy won't cause their developers to leave immediately, the market is just too big. What they have done is sent a clear message to developers that if they don't want to do it "the Apple way" then they should be keeping their eyes open for other opportunities. Apple has essentially made a huge gamble that they can be the smartest guys in the market forever. I think that's unwise.