So, I have asked this question many times but never got an answer. Fellow HN users, please tell me: >> What is the USP of BlackBerry? I've met many people who

So, I have asked this question many times but never got an answer. Fellow HN users, please tell me: >> What is the USP of BlackBerry? I've met many people who use BB and I have no idea why. And all the answers were like this guy's answers.