In some ways, a person's choice of phone might say a lot about them. In other ways, it doesn't. And as much as you shouldn't judge a book by its cover, we're all guilty of it from time to time.
Do you ever infer things about people's personalities based on little more than what kind of phone they use? Is it ever even remotely fair to do so? Can phone-based judgements in the real world ever be more than just the rash and unfair assumptions that someone is an arsehole or a fanboy that they tend to be on the internet?