No wonder Samsung a few days ago it started spreading soon have BBM and also in the official BlackBerry site leaked documents which would be the official BlackBerry Messenger on other operating systems, but then was withdrawn.
The good thing is that these manuals let us see that BBM to iOS and Android will provide its users with their own PIN, group chats will also be able to add contacts and copying the PIN and the traditional bar code.
Among the functions inherited from BlackBerry that have confirmed that they will iOS and Android devices are Voice BBM, BBM Video and screen sharing option.
For now it seems that BlackBerry Messenger is coming to Apple devices and Android devices for the month of September, and most likely as you grow users share the company would begin to integrate more functionality to your messaging system.