Re: Blackberry
I was a long time BlackBerry user because I hated virtual keyboards. Oldbugger makes the point that BB's tactile keys are tiny and therefore useless but the curved design of the keys gives you enough feedback that you know exactly which key you're pushing without even looking at it. Compare that with virtual keyboards where the keys are just as tiny but with no sensation to judge which letter you're selecting.
Despite my BB having such a small screen compared to some of the newer smartphones on the market I would have stayed with them indefinitely because of the keyboard primarily and also the fantastic OS which can be configured to exactly the way you like. But sadly the writing was on the wall and when it was time for a new phone this Christmas I opted for the HTC One even though the BB Q10 is a vastly superior phone for the simple reason that I didn't want to be stuck with a phone that gets no support if the company goes belly up which unfortunately looks inevitable.
However, if they do get their act together and manage to continue being a viable company, I will be first in line to return to their phones.