Toshiba late Wednesday revealed its first example of 19 nanometer NAND flash memory in a step that could lead to very high capacity smartphone and tablet storage. The two-bit-per-cell, 8GB per chip technology is the smallest ever and could double the capacity of mobile devices even before most have been using the previous upgrade. The extra-small size lets Toshiba stack 16 chips in a single package, leading to a single 128GB chip with twice as much storage as the previous best.
