BBY has a very good chance to become the FB of messenger if they can go through the storm.
Such a waste of former market leadership
Most teenagers probably don't want all their phone book imported magically in to their IM app either: 1) because they probably IM and Skype with more, and more varied, people than they text or phone, and 2) because their phone book probably includes their annoying aunties and relatives.
I also love the design of the BBM app (on Android). It's straightforward, single purpose and clean.
I've never used Blackberry Messenger. What makes you think it could be the "FB of messenger?"
WhatsApp | 350 million monthly active users
Viber | 200 million registered users
Line | 280 million registered users
KakaoTalk | 100 million users
Skype | 300 million connected users (663 million registered users in 2010)
WeChat | 400 million registered users (mostly in China)
Tango | 100 million registered users