Ask yourself what you do with your phone.
Not the occasional "I've got to reprogram my companies IT network on the fly" (yeah right), but what you really do day in and day out. Think of the ease of getting apps that you need when you need and think of them, and think of the stability of those apps.
Now think of your parents and what they do with their phone. What they really need, and how many times they call you with tech questions.
Apple has thought these issues through pretty hard. Has Google with Android? Has Microsoft with WM7?
For the advanced techie 0.05% of the population (the kind of guys who post on this board), it probably doesn't make a difference, and the ability to customize and probe the system may be more important.
By focusing on controlling and optimizing the user experience of the individual for the average person over focusing on "spec wars," Apple is cleaning their competitor's clocks. They will continue to do so, since this is a corporate ethos of Apple from the very beginning.
MS was great for the era of the centralized IT professional, which is now ending, as is MS dominance. Google is the world's greatest information aggregator, for which they will reap trillions into the future.
Apple, however, will continue to dominate as it gets better and better at Steve Jobs 30 year old vision of optimizing the user experience of computing to the maximum extent.
Nokia, Google, Blackberry (yes, screw you, arrogant Basille) etc should just throw in the towel at this point. They ain't catching up, and resistance is futile.