You know, after seeing these fantastic pics of the HDFK, it got me thinking. I don't have it in hand yet but I can infer a couple things.
Aside from dedicated chopping tasks where anything less than perhaps an 11" to 12" blade would prove counterproductive, the HDFK can probably accomplish all "camp" tasks. By that I mean the obvious feather sticks, firewood breakdown etc. I could see it very useful for constructing trap trigger mechanisms whether it's a dead fall or maybe a snare of some kind. The full size handle lets you do things that normally a "bird and trout" type knife would. You could even push the envelope and use it to skin an animal in a pinch. I know, I know---that is not its purpose and there are better tools but it *could* work.
Everyone has also remarked how comfortable it is which is important. A blister in a camp setting can limit your productivity.
If any of you guys like building "debris huts" or A-frame shelters like I do sometimes, I could see this knife making short work of a shelter build. Pair it with a good boys' axe and it becomes nearly invincible...I could definitely use it for my so called "camp furniture" w/ no problem. (Making rustic chairs and tables is harder than you may think !!)
The D3V also keeps its edge longer than "industry 3v" and is tougher. Who wants to constantly touch up their knife especially in a camp setting?
Those are just a few ideas--I'm sure there are hundreds more but the above tasks are things I have done and am familiar with. I like carrying a couple tools that can competently accomplish many tasks rather than a million specialized tools that each only do one thing.