At the time Microsoft was the single largest supplier of IT software to enterprises. Part of the appeal of Blackberry phones was they integrated well with the systems used in the enterprise.
In that environment, if Microsoft starts supporting iPhone like they support Blackberry (Exchange integration, a sharepoint app, what have you) then it is a strong signal that Microsoft has looked at the iPhone, and what it represents, and has decided its going to be a 'big deal' in the Enterprise space going forward.
It's an imperfect signal to be sure, but often treated like an 'outside opinion.' Using an example from my own history, I was trying to get NetApp to build a filer on the Opteron hardware and the lead marketing guy wouldn't believe the AMD64 stuff was "real" until Dell started shipping a server using it. That was a tool he was using to validate (or invalidate) my argument that AMD64 was the future of the x86 architecture.
So RIM, seeing Microsoft's response, might use that to "confirm" an internal opinion that the iPhone (and perhaps smart phones in general) wasn't a serious threat.
I of course have no way of knowing one way or the other, but I've seen it happen that way, and the hypothesis fits the actions as we know them today. I presume they could have started/done the BB10 "anytime" but only started once they had collectively internalized the threat to their market. So by that reasoning I speculate they didn't believe it to be a threat until much later.
In that environment, if Microsoft starts supporting iPhone like they support Blackberry (Exchange integration, a sharepoint app, what have you) then it is a strong signal that Microsoft has looked at the iPhone, and what it represents, and has decided its going to be a 'big deal' in the Enterprise space going forward.
It's an imperfect signal to be sure, but often treated like an 'outside opinion.' Using an example from my own history, I was trying to get NetApp to build a filer on the Opteron hardware and the lead marketing guy wouldn't believe the AMD64 stuff was "real" until Dell started shipping a server using it. That was a tool he was using to validate (or invalidate) my argument that AMD64 was the future of the x86 architecture.
So RIM, seeing Microsoft's response, might use that to "confirm" an internal opinion that the iPhone (and perhaps smart phones in general) wasn't a serious threat.
I of course have no way of knowing one way or the other, but I've seen it happen that way, and the hypothesis fits the actions as we know them today. I presume they could have started/done the BB10 "anytime" but only started once they had collectively internalized the threat to their market. So by that reasoning I speculate they didn't believe it to be a threat until much later.