A representative of BlackBerry traffic analysis solutions provider Zenprise softwarei just got back to me with the scoop of some diagnostics that are pointing to at least one problem likely at the root of today's bad BlackBerry North American services outage:
Basically there are two paths (IP addresses) in North America to connect to the RIM network. According to diagnostic tests run by Zenprise software, one IP address was refusing connections to come through causing enterprise users to be impacted. A few points to note:
* Any users on the working IP address experienced little to no service interruption
* Organizations that reported intermittent email activity are the result of switching between the two IP addresses.
Still working on learning more. But the problem does seem to be dissipating as I report this.