The flash drive for the 8GB iPhone 4 is being made by an unknown Korean company. But Apple currently sources its flash drives from Japan's Toshiba and South Korea's Samsung Electronics.

Apple orders many of the components from global suppliers, and then sells them, en masse, to one of its contract manufacturers based in China. In Zhengzhou, that means Foxconn.

Apple pays as much attention to its packaging as it does to its products. So much so, that it has a dedicated secret packaging room within its headquarters in Cupertino, California.