Apple Is Looking for Large Amount of NAND Chips

According to EE Times Asia Apple and Samsung have been discussing about volume purchase of 4 GBits (512 MB) NAND chips. Cupertino could be interested to acquire up to 400-500 millions of such chips, representing a theoretical storage capacity of 190 to 240 PB!
Such a large amount of flash memory can not only be used in iPod nano, Shuffle or iPhone models, even if their respective storage capacity is doubled! So Apple has probably other plans for such chips, and it could be used as Robson modules for future notebook models, or even SSD drive; without forgetting a hypothetical flash memory-based iPod 6G (6' of such chips to reach 32GB storage space).
Last but not least, Samsung is not the only NAND chips manufacturer on the market, and Apple might be discussing similar deal with other major player in the field.