Samsung this morning launched what's billed as one of the fastest forms of mobile flash memory available. Its new 8-gigabit (1GB) OneNAND chip is based on a 30 nanometer assembly process and a less dense but faster single-level cell technology to provide speeds well above what normal NAND flash memory can achieve at this size. It reads at up to 70MB per second, or more than four times faster than the 17MB per second.