This segment interests me the most, because I use a lot of portable applications, and just have to carry my email and work around with me. The OCZ ATV demands attention, with a black and blue rubber body. The rubber is hard and feels durable, and acts like a shock resistor. The rubber is also specially designed to make this drive waterproof - something I tested by holding it under a running tap. The rubber is like a duck's back, with no water clinging to it, and a quick wipe on my jeans almost completely dries it. Although I did want to chuck it into a bucketful of water for about an hour, I resisted, mainly because I still had to test it.
I'm assuming that ATV stands for all-terrain vehicle, and this drive certainly is one. Like the 8GB Corsair Voyager, I played hacky-sack with this one too (after testing it), and although it doesn't bounce as much, or as weirdly, as the Voyager, the ATV still stands tough. It's by far the best built drive of this test.
In terms of performance, however, this is more a Hummer than a Ferrari. The assorted tests especially kill this drive - like a Hummer it probably needs a lot of refuelling pit stops between file transfers. This drive was the slowest across all categories for the assorted read and write tests. The sequential tests didn't reveal much better results, with the drive yielding the second slowest write time and third slowest read time.
So if you want something that will last a lifetime, really cheap, and don't mind spending half that lifetime waiting for transfers to finish, this drive is worth a look at.