As for where I stand on the question you ask, I don't think I know enough about the ramifications of either option (or if there is a third option) to have a firm position. If I understand current affairs correctly, the decision will be made by the courts. If the courts are to make the decision then I am not sure how my position matters -- I won't be in the courtroom and I won't be doing the regulating. Is it so hard to believe that someone who has been testing, for more than 10 years, the nicotine delivery and other effects of potential reduced exposure products for tobacco users is motivated by a scientific interest in the nicotine delivery and other effects of electronic cigarettes?
The "third option" is an official recognition that tobacco products CAN be made safer. After decades of the FDA and Surgeon General telling us there is "no such thing as a safe cigarette", people tend to believe this. However, in the tobacco Act of 2009, Congress gave the reins of control over tobacco to the FDA and asked (or at least implied, IMO) that they create regulations to make tobacco products safer. (Perhaps not "safe" in absolute terms, but certainly "safer" in relative terms)
A moment ago I was reading Bill's post that seems to imply that others scientists are soon going to be reporting results similar to my own, and that some of them are also going to report that cartridges labeled as containing nicotine do not in fact contain nicotine (do I have that right or am I misreading it?). If that is correct, surely everyone here should favor regulation so that everyone can be sure that they are getting/inhaling what a package says they are getting/inhaling?
I'm sure Bill will give you a better answer, but when I read his post I thought he was implying that he'd heard through the grapevine about your research in particular. Your work showed that an e-cig neophyte taking 10 short puffs on a new PV shows little or no increase in nicotine plasma levels (as if this is a surprise), but you acknowledge that you would not be surprised to find statistically significant nicotine delivery under other conditions (even though your quotes to the media do NOT reflect that acknowledgement). Therefore, I really doubt that there are other researchers attempting to duplicate your work.
Considering that you have done research on tobacco and nicotine products in the past, I'm a little surprised (disappointed?) that your work does not seem to acknowledge the phenomenon of self-titration: When given enough options, tobacco users seem to have an uncanny ability to get themselves just as much nicotine as they crave by whatever means. They'll take longer or shorter "puffs", they'll take more or less frequent puffs, they'll inhale deeply or shallow, etc. That phenomenon is what really invalidates this study: In "real world" conditions, if a neophyte user doesn't get a statistically significant amount of nicotine from their first 10 "puffs" he/she will simply continue puffing until they are satisfied (unless, that is, your suggestion that these products are as effective as puffing on an unlit cigarette is just plain wrong)
Dr. E., if your intentions regarding these products are truly investigational (rather than based on an "anti" agenda) I would suggest that future studies investigate the habituation factor of these products in comparison to traditional tobacco use. Due to the habit forming ingredients present in smoke that are not in PV (specifically, Monoamine oxidase inhibitors), I suspect that the amount of nicotine absorbed will tend to trend upward with traditional tobacco use and level off or trend down with "cleaner" nicotine delivery systems. If my hypothesis is correct, this could help debunk the "What about the Children?!?" claims by providing evidence that using an electronic cigarette does not cause nicotine addiction or gateway into traditional tobacco use. Alternately, if there is no difference or a tendency for PV users to increase their nicotine intake, that could suggest that manufacturers should consider including other tobacco alkaloids in their formulations.