Well not from BB's perspective 66% growth over last year 21 million current live connections, and still the ONLY secure messaging/app platform certainly helps with most companies, you still need lots to deploy from a WM perspective compared to BB, crikey the softwares even free and runs on the same box as your messaging server!
The big thing is data tariff's and battery life for the end user, I've been to so many corporates who all complain about this, they even have a WM device and a normal phone from work as the battery can't hack the day because of the poling back and to to the messaging server, and complaints of tarriff as it sync the entire mailbox, I'm sure this is configurable but can you imagine sync'ing a couple of gigs worth of data OTA? So that's 2 connections per user 2 tariff's just to mobilise 1 user.
Putting it another way BB don't even see WM as a threat, the ONLY competitor in this space are Apple and that's a consumer device anyways, the BB brand gets bigger and bigger something that no-one else has currently.
And BB don't make games consoles