I found this interesting article posted on Yahoo Financial website.
http://www.bestcashcow.com/technology/article/aronliv/iphone-3g-supply-can-meet-demand-rimm-scared
The above link states:
"The device was unveiled a week ago. Even now, the lines are extraordinary with waiting times to purchase at most Apple stores in the US are between 3 and 5 hours (some places longer). Extra staff have been added and the 15 largest stores are now each selling 1000 devices an hour. Added security has been added to control crowds. The inventory delivered to most ATT retail outlets has been so quickly exhausted that most outlets are taking names for a "will call" list saying that they will call in 15 days when it is your turn to purchase. Apple has cancelled all planned advertising."
http://www.bestcashcow.com/technology/article/aronliv/iphone-3g-supply-can-meet-demand-rimm-scared
The above link states:
"The device was unveiled a week ago. Even now, the lines are extraordinary with waiting times to purchase at most Apple stores in the US are between 3 and 5 hours (some places longer). Extra staff have been added and the 15 largest stores are now each selling 1000 devices an hour. Added security has been added to control crowds. The inventory delivered to most ATT retail outlets has been so quickly exhausted that most outlets are taking names for a "will call" list saying that they will call in 15 days when it is your turn to purchase. Apple has cancelled all planned advertising."