I'm in the U.S. I have two international trips coming up: Bonaire and England. In the past I've always downloaded to my Garmin and printed out the info, which works if I know ahead of time what area I want to search in, more or less.
I love the flexibility of caching with my iPhone and looking for a nearby cache wherever I might be, and Verizon has a plan for $25 for 100MB of data as a "global feature" option. How much is 100MB? If I spend a full day running around looking at maps and caches, about how much data would I use? Can somebody give me an estimate?