With BBM being a single-platform app, you have to convince them (or vice-versa) to get a Blackberry - probably even more difficult.
I've never heard of somebody buying a BB for BBM. It's one of those features they start using after they get a BB (personal or work phone) and it comes installed on
every BB. Even if the third party app did everything BBM does (none currently do) there's still a transition period where you're asking them to use
both apps. That takes time and of course if a new better app comes out you have to start the process over. Anyways, here's
another discussion about BBM over on AC. Here's some some things they bring up:
- Everybody can see your status (busy, unavailable etc.)
- Ability to set up multiple group chats (friends, family, work etc.)
- Ability to send out calendar events which seamlessly integrate with the calendar app.
- Ability to send out lists which everybody in the group can update.
You can't do those things on Android or iOS without using multiple apps. I don't use chat/messenger apps either, e-mail is quick enough for me, but I also realize there's a lot of people who can't live without them.
