Mine still wasn't working this morning, had to call AT&T customer service and get transferred to a Blackberry Specialist. They sent me a new service book and all is well.
I am reading there are stil some lingering issues but for the most part the system is running. Imagine how sales people and customers must have felt yesterday during the phone activation phase?
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Mine's been working pretty much ok for me today (Bold 9000, AT&T, DC area)...not perfect though. Some emails have seen a 30 min delay or so, but most are coming through fine (and it's definitely nothing like yesterday).
Things have been mostly fine since some time yesterday evening, minus a few hiccups here and there.