The iOS 5 update errors are being reported as server failures on Apple. Although, I admit I'm not helping the problem. It took 20+ tries to finally get it to phone home correctly.
http://thenextweb.com/apple/2011/10/12/apples-ios-5-upgrade-...
http://thenextweb.com/apple/2011/10/12/apples-ios-5-upgrade-...