Flyer's Pack

I do see a problem with thirth-party programs like GSAK, Cachemate, GPXSonar etc. Most of these programs use the coordinates for filtering/sorting on distance, or even filtering on distance from an arc, poly etc. This functionality will not be supported for caches with notional coordinates, unless the real coordinates are in the GPX-files used by these programs, but that would open oppertunities for "hacking" these files to find the actual coordinates for the cache. For me, I wouldn't like to lose that functionality, because I do most off my selecting a cache offline, sometime on the road without acces to GC.com.

Well, I realy don't understand what the problem is here... The rules say no knives, and I can't see any reason why not being able to put a knife in a cache could influence the fun in geocaching.