Well, if they couldn't figure out an alternative legal interpretation in three and a half years it would seem provident to assume no-one else will in 75 days.
The simple answer is that the spirit of the law applies to the type of tobacco product that existed at the time of the drafting of the law. The letter of the law says that it applies to all products deemed to be tobacco products. There's a massive gulf between the two, and the resolution to this gulf is entirely political in nature. The FDA is very smartly positioning itself to be free of responsibility.
That's how I read it, anyway.
I've been in touch with Wayne at heaven gifts. Here's one of his comments:
"Actually we started selling eCigarettes through ebay in August 2006. Maybe we can contact eBay to get those early transaction details."
Now I don't trust the FDA and they could change definitions, etc. but the idea that there was no predicate products is just wrong. And others' posted links to Ruyan, etc. show this as well. Whether or not they'd consider it a predicate or what would have to be done to show substantial equivalence, I know...