OSdev is easy...
Even building an OS from scratch (as opposed to riding on Linux/BSD) is easy, relative to the difficulty of getting anyone to use a new OS. It's the 4-minute mile of marketing.
And it doesn't get any easier if you squander your existing userbase by foisting dumb new UIs on them, taking sides in culture wars, and partnering with the likes of Yahoo and Pocket.
Biting the hand that feeds IT
