Manhattan? Ok so that's a little blunt now that the Watchmen movie is out, but "Hiroshima" or similar would be over the top, right?
We're in the context of atomising at least.
Nova, for similar reasons. Obviously this would commit you to calling the second version the "Supernova", but that wouldn't hurt, would it?
To move away from the explosive theme, you could go with something along the lines of
Hercules.
Viper flirts with the word "vapour" while at the same time just being a very slick and sexy word.
Another pretty word albeit with no relevant meaning would be
Polaris. Polaris... Polaris! Say it a few times, you'll see what I mean.
For some reason I like the word
Martello which is Italian for "hammer".
Humm, what else. The first person to discover a cause of cancer was a British doctor named Percivall Pott. A rather unattractive fellow with a fairly ugly name, but it seems strange to me that no e-cigs really try to capitalise on the health benefits. Naming the thing somehow in relation to the medical science of cancer treatment might not be all that misguided. "The Percivall" wouldn't work, though, and "The Pott" might not have the mass appeal you're after, although I'd certainly buy it for no other reason. AFAIK the first person to document cancer was Hippocrates, so.. the
Hippo? Nah, alright, I'll give it a rest now.
I didn't read the whole thread so apologies if some of these names have come up already. But something to think about there. I'm crap with naming things anyway. I am however a professional artist and graphics designer which you may or may not take to be a hint.