Regardless, innovative isn't just trying it first. It's making it work first. Microsoft has made a good try but there's something missing if it's just not seeing adoption. I don't think it's easy to say what that is or it would be fixed already. But I do think Cringely is right that someone will get there, Apple or not.
So the idea of convergence isn't new, and the idea that iOS would win at the convergence game in the Enterprise is implausible - I don't know what he was smoking when he wrote this article.
Secondly, im willing to entertain the idea that iOS could evolve into something that could become useful as a desktop replacement, but i am yet to see a single reason why it would have an advantage over competitors, and there are many reasons, such as cost, that they are at a disadvantage.
I am pretty sure Ubuntu Touch would have the same functionality.