Evangelising USB flash drives in their own right isn't a hard sell these days, but this in turn leads to an ever greater need for drive manufacturers to differentiate their offerings. To that end, the subject of today's review is a perfect example of this, as we take a look at a couple of flash memory drives from ATP with very different aims beyond their obvious task of storing data - On the one hand, we examine the ruggedised ToughDrive Camo 4GB, and on the other we look at the environmentally friendly EarthDrive 2GB.