[ZombieBerry]

I don't see it as being an issue. BlackBerry has been moving in this direction for awhile. BBM can be used only on WiFi without any problems, and to be fair, the messages will continue to go through BB's infrastructure. If some already feel that switching to AS is a security killer, then they probably will not be thrilled at the idea of BBM for everyone either.

I am more curious to see the downtime (if any) from the influx of new users. It's going to interesting when it becomes available for i and A