Following the appearance of mysterious images this morning, Apple has apparently confirmed the existence of a new 4GB nano. Speaking with an Apple spokeswoman, Reg Hardware discovered that the company made a “limited number of 4GB iPod nanos for some international markets.” Just how many were shipped out and to what countries specifically remains a mystery. Whether this is some sort of test market for a wider launch is also unknown at this time.
https://gizmodo.com/unidentified-4gb-nano-showing-up-on-store-shelves-in-eu-5051098