How long did it take last time until stock levels were at a point where you could walk into a store and pick up no queuing? Also how long till deliveries went back to normal? Was it about November/December?
Not sure as have always got around launch date since 3GS. Also new iphone used to come out in May/June so stock did stabilise within a month or 2 but I imagine now with a September launch you might start running into issues of (very nice) people buying for Christmas presents come November.