Updated - BlackBerry Outage (somewhat) Explained.

We now have a (somewhat limited) explanation to the cause of the outage on RIM's network that lasted from Tuesday night into Wednesday morning According to statements the outage was caused by "the introduction of a new, non-critical system routine" In the long run this will probably not damage RIM's standing as the "must have" email communication device. Microsoft and others have made some progress in challenging RIM's dominance. Some companies will probably consider different solutions - if not just for backup purposes.