How's the iPhone OS 3.0 upgrade going for you?

So now that the iPhone 3.0 launch is in full swing, we're wondering how it's going out there. Team Engadget appears to have made it through without any problems, but we're hearing sporadic reports of Apple's iTunes activation servers being slammed and potentially some kind of IE security certificate problem on Windows, which is leaving a few people with unusable phones while things get sorted out. Everything work out okay for you?