This does not seem in line with the understanding of the word used in The Innovator's Dilemma, the book that popularized the word in a business sense. Guyzero's response above matches much more closely to it.
I can go into detail, but the standard ideas for Disruption tend to be technical in nature whereas the iPhone was a profound multi-faceted assault on the world. There are so many elements of this attack, it's hard to know where to begin, but it was certainly more than just a newfound set of components (a lot of the iPhones physical technology was not new).
But, I hear and agree with your point. Guyzero makes a great post above and it's certainly worth reading :).
If you built a hovercraft, it would destroy the car market, and everyone would expect that. But Blackberry did not expect the iPhone to kill them---there were all sorts of business-y feautures it lacked. "Blackberries are fine!" said RIM's customers.
And that is worth naming, I think. We have a whole jargon around the startup ideal of constant, low-level iteration, when that is precisely what screwed Blackberry.