While it would certainly be wrong to call the issue widespread, some iPhone users have reported delays while trying to activate their new iPhone 3G S.
CNET's own David Martin tried to activate his iPhone today and had to call AT&T customer support. AT&T customer service reps couldn't explain what the problem was, but it surely has to do with the number of people trying to activate their phones all at once.
For some users, iTunes is reporting that it could take up to 48 hours to complete the activation process. From experience, I know that this is a standard message. The "up to" part is the key. It could be done in an hour, there is just no way to tell.
The problem is not new, nor unexpected. During an iPhone launch day, tens of thousands of people around the country all try to activate their iPhones, which generates an incredible volume of attempts on the AT&T servers.
AppleInsider and other blogs around the Web are reporting similar scattered issues.
However frustrating for the users it's happening to, this year's activation issues are nothing like the server meltdown AT&T suffered from the previous two iPhone launches.