I have to post just to tell you about my experience with this company. I bought an Ice Companion (
http://www.toollogic.com/ice1.htm ) about 18 months ago from a local store. The other night I noticed that the compass was not working so I emailed them and explained to them that I not longer had a receipt but that it was broken. They immediately sent me a new one with and addressed, postage paid envelope to return the broken one. I did not have to return it first and be without it while they decided whether or not to replace it. Great customer service!
The Ice Companion is not a substitute for a "real" knife but it is a slim little package that fits nicely in a small area. If all else fails, at least it is a blade. Actually, I've never used the blade, just carry it in a small PSK. And I recommend them highly, based on my experience with their customer service.