I'm headed to Turkey, Morocco, Italy, Spain, and France for two weeks at the end of November. Haven't traveled internationally with an ecig, but personally, I'm not taking any APVs with me as I don't feel the risk of it getting confiscated outweighs the benefits of taking any of them. I'll be taking a dozen eGo batteries and 6 vivi novas (with additional coils) along with 60ml of
eliquid (I go through about 3ml a day). Planning to stash 2-3 the additional batteries with my camera gear (which I figure will attract the least amount of attention) and the rest in my checked baggage. I'm honestly expecting at least one pair (battery + vivi) getting confiscated in at least one customs search given the number of countries I'm going to. I know France has a decent ecig population (there are two B&Ms in Paris), but I'm most concerned about Morocco.
From everything I've read, most customs agents either ignore them or inquire about them out of curiosity more than anything. I think the larger APVs will attract more attention.