Actually, it is a good survivla knife, it will chop, and do some "light digging", but it is a bear to sharpen, so unless your good at sharpening high end steel, then stay away from it. D2 while not stainless, is hard enough (when properly heat treated) to be somewhat stain resistent. With this said, it is still imperative to keep the blade oiled, (especially the edge). The epoxy coating does wear off when the knife is used so it does need to be protected.
I do not carry the D2 anymore. Its a little on the heavy side for hiking, backpacking. Instead I use a knifeware kampr, does a great job slicing in the camp, and cutting brush, and is still light to carry. I think the closest offering to this that ken at knifeware has to this, would be these:
http://www.knifeware.com/blackjackquick.html
http://www.knifeware.com/blackjackgrunt.html
I worked in survival equipment in the Air Force (active duty 88-96).
Take note, a good survival knife is only as good as the person using it. A good SAK makes a good survival knife also. The kits we had in the AF had really basic knives, nothing to bragg about, but they worked. It all really depends more on your knowledge then on the equipment (although you do not want to carry cheap equipment). What you need depends on what enviroment you are in, and what your needs are.