He didn't say gigabyte, he said gigabit. The precise part is: "Samsung K9F4G08U0A 65nm 4Gbit NAND Flash"Originally Posted by ShawVAuto
as found at the site that made the video
That is the Wii's storage space as 4gigabits = 512 MB. There is no extra memory for Nintendo to unlock. And given the cost of real 4GB (gigabyte) nand flash chips in 2006, it would have been an incredible percentage of the cost of manufacture to have not even been publicized.