Apple appears to be overwhelmed with new iPhone subscribers. New owners trying to activate their devices are running into a bevy of problems with the iTunes-run activation site -- and are thus being left with useless electronic boxes.
The issues are plaguing store activations and home-based attempts for both new iPhones and first-generation firmware updates. For now, Apple says it's "working on a solution." AT&T is officially asking customers to take their phones home to activate later, once things are back up and running.
If only Apple could have somehow known in advance that there would have been such a rush of activity today, maybe they could have prevented this.