You might not be completely happy with iOS, but the iPhone s operating system is probably one of the best and easiest to use in the world.

It completely changed the smartphone landscape and directly influenced the trajectory of Android which was shaping up to be a BlackBerry clone until Google changed it ahead of release to make it more like the iPhone .

But the iPhone s OS could have been a lot worse, a new leak indicates.

Images and videos showing the click wheel iPod-based OS that at one point competed against iOS internally at Apple were published online Friday morning.

Sonny Dickson, an Apple insider who has posted plenty of iPhone-related leaks in the past, got his hands on a clip that shows an iPhone prototype running this iPod-like operating system called Acorn OS.

It s exactly as terrible as you d think it would be.

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