How often does AT&T update the info for the direct fulfillment online tracking service they offer? Is it every 24 hours, or realtime, whenever something changes? As of August 5, 3:00 PM, it said that my freight and my iPhone was backordered. Just now, August 6, at 12:08 AM, it changed from a 1 to a 0 in the backorder column for my iPhone. Does it change every 24 hours? Or was that just a coincedence?