No that redundant actually, because there's one big difference between BBM and other cross-platform messaging services : security of the communication. Ok, you may tell me that nobody knows that, nobody cares about that, it just reminded me that scandal in the UK when rioters used BBM and still RIM refused to communicate the data to the authorities (would it be text messages, FB messages or a new cross-platform messaging service, the police would have it all and quickly). Tell them to pass to other services, I bet they wouldn't go....more globally, people around the world get anxious about the use of their personal data, so the "security" argument (which RIM has) may still be appealing to some....