It's not here just yet, but Wireless USB devices are on the way and they'll likely do wonders for cleaning that jumble of cables writhing around behind (or even on top of) your desk. For a primer on what the technology entails, check out this concise article at Auphan Online.
"Are you tired of dealing with dozens of cables connecting to your computer? Nowadays you need a cable for everything you want to connect to your PC. Your external hard-drive, camera, printer, scanners, flash drives all require a cable. Well your troubles are over with the introduction of Wireless USB."