"Neither Google nor Microsoft will ever be able to tailor their software to other manufacturers’ specific (and varied) hardware devices as well as Apple can (and does) with theirs."
Really? Marco Arment can predict the future? Do we lose all hope that people will do anything better than Apple? Even in Marco's little part of the world it sounds outrageously short sighted. You can say what you want against everything non-Apple and that would of course be your opinion (as opposed to universally accepted truth) - but this is going too far, even for Marco Arment class of people.
He goes preaching about Apple's integrated experience, "superior everything" and ponies - but you know what the whole world is not buying the iPad universally - Samsung sold a million Galaxy Tabs, Androids are already outselling Apple worldwide and reason for that is not that the people buying them are stupid - people just have different needs and tastes. Banging on the "teh superior AAPL drum" with a sad tune of everyone else's suckiness for ever is not going to change that.