With 2 batteries and 2 atomisers one can make two complete e-cigs. Misleading to those in the forum who are used to suppliers providing two batteries in each kit, but technically true...
I'm a little bit more worried--as someone already pointed out--that there was a bit in the promo video to the effect that since it looks 'cool' even non-smokers can/will want to do it. That's something the anti-cigarette people will take as a black mark against e-cigs -- if they're marketed to attract people to 'smoking'. (It's not something you need to advertise, if someone wants to e-smoke because he thinks it looks cool, he will--you really don't need to suggest it to him).
The only thing "non-smoking crowds" have to complain about is the "bad effects of smoking cigarettes", and THAT only mostly applies to second hand smoke (some to the increased cost of medical care later in life).
If you're looking at "nicotine", it's not dangerous and non-destructive. All in all, it's a safe drug (if you are careful not to overdose on the pure liquid.. the e-liquid, I think, may end up being the downfall of e-cigs) and no one has _anything_ to say about what "safe substances" someone puts in their body.
If you have non-smokers starting to use "nicotine" in a "safe manner", how is that different than someone going to Starbucks for the first time and getting a double espresso? Or going to a bar and having their first Fuzzy Navel? Remove the 3999 _other_ chemicals from cigs, and have just nicotine and "safe stuff" (propylene glycol, and the like), and the "anti-smoking" crowd can just go sit in the corner and .....
Nicotine is addictive because it makes you feel good, releases dopamine and adrenaline. How can we say "exercising" is ok when it does the same thing, but say it's bad to get the same feeling from a chemical? Don't we promote the use of chemicals to "feel better" all the time? and THOSE drugs have _serious_ side effects, but we don't care because having a raging hardon or not having any sniffles while on a picnic is "important".
As long as no unsupportable claims are made, as long as everything is kept in perspective, there won't be any issues. I agree that we want to avoid certain scrutiny in this early stage, and unfounded claims (like "completely safe" and "smoke" as much as you want) should be avoided.. but don't let the "anti-smoking" crowd bother you. They don't have a leg to stand on in terms of logic and reason and fact.