Demelone just started a thread about his wood kit and mentioned he carried lip balm in his Altoids tin.  I didn't want to jump in on that thread but thought I'd mention I've had good luck using Chapstick as a rust preventative in carbon steel edges.  Easy to carry and it works well.
In case you were wondering, I like the strawberry flavor.  It makes my lip so nice and pink. 
And your knife taste good!  I would guess that the parafin or whatever they are using coats the blade.  When in a pinch use what you can! <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />
I normally use a corrosion inhibitor designed for firearms on my blades with great luck.  Can't for the life of me recall the brand right now though.