Thx for the quick replies!
Sounds like I had a very normal upgrade experience. We have two BES (single MS SQL database). Exchange servers (2003 & 2007), are local. We have approx 520 BB users split evenly between the two BES.
Without going into the why's, we have a fair number of users, that have mailboxes well over 10GB's in size (don't shoot me, I'm just the messenger)!
That may then account for our extended 'reconnect' time, which took several hours (if not more), for all BB's to begin sending and receiving again.
Our servers were down approx 1 hour during the upgrade. I did monitor Blackberry Manager, however it doesn't really give you the status I was looking for. Even though a user profile showed a current 'Last Connect' time, the employee's BB was not sending or receiving messages. Again, they all returned to normal function without any intervention. Just seemed to take much longer than I expected.
Thank you both for your comments!