The price of memory has dropped fast over the years, and flash drives are now available with lots of gigabytes of capacity--something that once seemed unimaginable. So try to imagine this: low-cost thumb drives with a terabyte of memory. Researchers at Arizona State University they can make that happen. The key is new nano-technology that, the reseachers say, is 1,000 times more efficient than flash memory. Wired news has the full story. According to the story, this discovery comes just as the limits of flash memory are being approached.