Brdad:
Nope, it is not only FTFs I feel the need to log from my phone. I will log finds from my phone if I am just grabbing a cache here or there while around town or when I am grabbing a random cache. But when I am on a day of caching, I log everything when I get home, except for an FTF that I may get. Sometimes I log field notes to the Geocaching.com website from the phone because I can more easily type into the iPhone than my PN-60w. This is especially true on Earthcaches or Virtuals. Usually when I grab a trackable, I log it immediately on the iPhone or as soon possible when I may not have reception on site, with the iPhone.
Yesterday, while on a trip through Downeast Maine picking up the remainder of my Delorme Challenge Map grids, we came upon a cache which hadn't been found after being published three weeks prior. It was Cemetary View, and in the Lubec area :
http://coord.info/GC3EGCY
We made the find, I let Marcipanek keep the FTF prize Geocoin since he likes that stuff, and I noticed I was picking up Canadian Data cell phone service roaming. Well, what did I do? I logged the cache on my iPhone anyways, regardless of the extra cost. For me, it is principle, and courtesy. I guess what I am getting from most people who comment on this topic is that although they admit realizing that FTFs are very important for a large amount of cachers, they would rather be stubborn and claim that because they don't have a certain technology (in this "high tech" game that we play) that this absolves them from being courteous, just because that is "how they play" the game. There are a lot of courteous things that a lot of us do in caching, and a lot that we don't, but when we acknowledge that we are not being courteous not because of ignorance, but because of choice, it is a bit disconcerting.