A salt? Ouch. Then the lawsuit may have merit, unlike the free amine the salt is absorbed only in the lungs, and you are forced to inhale deeply and get a nicotine hit.
Yeah, exactly. The linked article quotes parts of the suit that specifically say "nicotine salts" which I think is suggestive that this may be a big part of the case.
The description in the patent states that pharmacokinetics and pharmacopsychology of their product is comparable to traditional cigarettes, which all smokers know are addicting as hell. It quacks like a duck and walks like a duck.