When RIM was pushing all-in on the new OS, I wondered how any human could possibly think it was a good idea. How could they not see: it was clearly, obviously suicidal. Now, years later, after we know that it was a horrible idea - we've seen how it took away RIM's last real shot at continued relevance, now that we know people are not excited about it, that it didn't bring anything interesting or novel and has been panned resoundingly by critics and consumers pretty much everywhere, and people have demonstrated their preference by switching off RIM en masse... how can people still not see it? I mean, lots of people were stoked about the Playbook; it had every chance at success. Until people saw it and it was obvious garbage.
I know people who still like their BlackBerries, some have even gone back after experimenting with other smartphones. But they went back because of the hardware, in defiance of their hatred for the OS. My brother has one and is perpetually swearing at it and its unintuitive menus and crappy apps, but he keeps it on him because it gets a good signal, has a hardware keyboard, good battery life, and voices are clear.
He would instantly switch to an Android phone on BlackBerry hardware (sometimes he actually carries two phones so that he can have one that is a phone, the BlackBerry, and one that is everything else, the Android). I think it would be an OK idea, and said so years ago, once it was clear Android would win. I don't know anyone who would want BlackBerry OS on someone else's hardware.
Except you, I guess.