If you want to carry around dozens of gigabytes, and access it away from a wall outlet, bus-powered pocket USB hard drives have gone below the dollar-a-gigabyte range, like Seagate LLC's FreeAgent Go in 80GB to 160GB versions, and Toshiba America Information Systems Inc.'s USB 2.0 Portable External Hard Drive line, in 100GB through 200GB versions. That's big enough for files, applications, a Linux distro, even a few movies and a whole lotta MP3s. This season, $50 4GB drives are common, and 8GB USB drives start in the $50-to-$100 range. USB flash drives are the 'sneakernet' of the new millennium. Mobile storage, of course - for data and also apps USB peripherals come in all shapes and sizes
