With iphone 3GS, I notice that some caches just plain don't show up. These are caches that I see on geocaching.com. If I specifically search for the name (e.g., GC31Q2B), I can see it and add it to my "saved" caches, but it doesn't show up in a normal search (e.g., "Find Nearby Geocaches").
Is this true for all "Members Only" GCs, or is there another explanation?