There are reports all around that the BIS is down across North America. Personally, I never notice these things when they happen because I’m on a BES, but I feel for everyone affected. The outages are reported with AT&T, Verizon, and T-Mobile. Again, there are so many reasons why the BIS might be down that it’s impossible to speculate, but if multiple carriers are affected, it’s probably a node somewhere in RIM’s network.
Are you experiencing an outage? Where are you and who is your network provider?