I haven't followed the FTC activities too closely on this one, but the "summary" I saw a few days ago implies that about all the "act" will really do is require that anyone who sends advertising has to include "advert" in the subject line, and must include a contact for people to request to be removed from their mailings.
Since so much of the crap that comes in seems to be aimed more at getting you to confirm you addy, requiring them to collect your address doesn't seem too productive. - - - or am I missing something here.
The No-Spam list is still a "work in progress," and a couple of "usually knowledgeable" commentators don't seem to think it will ever happen (or at least will ever work.)
But if you get someone trying to sell it to you now, it's definitely a phony.