Horses for courses
I have a Win7 notebook, an Android smartphone and an iPad. One for work, one for communication and one for entertainment. Yes, there is cross-over and when I am not at my desk the smartphone sort of fills in for the other two, but my biggest issue was getting the smartphone and the PC to synch now that everyone tells me to "keep it all in the cloud". I don't do that. I am responsible for my own data, thank you very much. I missed the ease with which Palm did that, but it has just meant that I need to have a different PIM on the smartphone so that I can still synch with my PC. Not a problem, just an expense (and not too big an expense at that).
Some people want everything in one place (and/or in one OS) and it is good that they can do that, but for those of who don't, we still have an option. I've never had a Blackberry, but I know that I could (since I am sure that there are ways to make it work the way I want it to) and I am glad that they are still a going concern as competition is generally a good thing in itself.
And, as a final note, funny how they have become TCOKARIM and LIM* these days - how the world changes!
*For anyone of tender years, previous incarnations of TCOKARIM were so fond of patent litigation that that were referred to as Lawsuits In Motion by El Reg. This was something Apple and Samsung saw as a market they wanted to capture - which they have done quite successfully.