OK, I can see your point. However, in that case, and considering that none of my legs are going to be more then 24 hours in duration (and quite a few will be roughly half that), do I really need a satellite phone? Couldn't I just contact them whenever I'm refueling/resupplying/stopping-over or otherwise in cellular/internet range? I'm sorry if I'm being a nag but having looked into satellite phone service ($$$) I'd really like to save that cost (if at all - safely - possible). Perhaps I'm not as smart as I'd like to believe but I really don't see a major change occurring in less then 24 hours. And, even if it would, there's not much I could do about it other then speed up, consider alternatives etc and I'd do that anyway if I saw telltales (e.g. barometer dropping, wind picking up, clouds darkening etc).