Not sure just how effective this will be, but you've got to admit that a portable anti-virus system can only be A Good Thing. This USB Virus Chaser, courtesy of Korean company Digiworks, is not the first anti-virus-system-in-a-USB, as they've been around for a couple of years (most notably Iocell's VaccineDrive). The Virus Chaser is around from this month in 2GB and 4GB versions. – Ad Dugdale

USB VIrus Chaser by Digiworks [Akihabara News]