Touring with my New World Tourist hasn't been much different from touring with my older non-folding bikes. The advantages to my NWT have been: fewer hassles and no fees when flying, and the ability to take it on some forms of public transportation which don't allow regular bikes. For the latter, I pack it in a carrying bag as suggested above. I do find that it's very cumbersome to carry, however. Maybe you're bigger and stronger than I am. I've had mine for 6+ years, I've toured all over the world with it, and I've had no problems with the 3 speed hub. My last trip was a few months ago in Sri Lanka, and I was amazed how many favorable comments I got from locals there (who didn't realize it folds). They just seemed to like the way it looks.

My rear rack just broke this week, but at least I wasn't on tour. I can't think of a single serious problem I've had with it on tour.