This is probably more that you wanted to do (or maybe something you can do in version 100

) but it seems like we are mostly outdoorsy type people here so......
You could expand it to have non-knife stuff like:
An Outdoors Section
(1) Declination (for compasses) map of N. America/World
(2) Basic Survival - just a checklist of things to think about when u get lost/injured/etc in the woods
(3) Basic Fish/Game Cleaning - once again very basic, just how to gut an animal, scale a fish. I know most of us know how to do it already but it might be interesting for the "average person".
(4) Bullet Drop for most popular rifle calibers in most common grain weights (.22lr, .223, 270, 30/30, .308, 30/06) - there are already applications for this but would be cool anyway or at least for my favorite calibers

.
[This list could have many more subjects]
An "Ethan's Camp Cooking Recipes" Section
(1) Basic Tips
(2) Easy Recipes for Camping
[Would need Ethan's help of course, but wouldn't it be great to have recipes with you while camping?]
An Outdoor Internet Links Section
If you went this far, then you'd have to expand to android phones too, but I think an application like this could be great for everybody - KaBar, Ethan, Customers, etc.
Just a suggestion.