Just as Nokia had to drop their investment in Symbian and Maemo
> BB users are quite particular about their handsets
However they're not particular about BB10 (the QNX one you mention) since most of them aren't even running it. If anything, the fact that they're in the middle of a delicate platform shift makes the parallels with Nokia in 2011 all the more striking.
Anyway, its all just idle speculation on my part.
With 7.4 million Lumias sold last quarter, at $25 per Windows Phone license, Nokia is drawing just $70 million each quarter from Microsoft. At 10 million units, they'd start paying Microsoft money.
Blackberry sold 6.8 million units last quarter. They have no maps to license to Microsoft. If they signed an agreement with Microsoft tomorrow, it'd still take several months for the first handset to come out. What would Blackberry be worth to Microsoft in a year?
The numbers are not in Blackberry's favor. That having been said, I will never underestimate Steve Ballmer's ability to overpay for a deal.
Consider me convinced, that might just work out well for them, if they're going to switch anyway it might as well be to a company that is already well represented in the enterprise. How they're going to give those users the blackberry experience is beyond me though, but that would probably not stop an acquisition.