It's not just a phone, it's a classic case of people's need to separate themselves into groups (I am an x user, he is an y user) and then battle it out against those who pose a threat to our tribe, and to say negative things about those who are outsiders, while saying positive things about our fellow tribesmen.

It's the same thing that happens with football teams, rival schools, those who insist "in America, we speak English", etc.