Dumping information from a NAND module is not a huge development, guys! The chips follow certain memory standards, dumping raw data from them is a matter of recognizing the chip model or family and using the appropriate procedure.
I'd like you to take another closer look at the images of the dump being opened in a hexeditor.
Plus I'd like you to take a look at the EurAsia link.
If their already able to find binary files inside then NAND then it's surely something note worthy ;]
Ofcourse, NAND dumping is nothing new.
But the small time frame in which it happened + the amount of information already out surely is a huge development.