I think a key point you dudes are overlooking is NOT whether new stuff is certified; I think you'll find most, if not all, new stuff is either FIA or SFI certified (though I have no doubt there are exceptions).
The REAL point here is that there are a lot of folks, especially first-timers and old-timers, that show up with old(er) fire protections suits, many made prior to these regulations. Trust me: I get to see a lot of these during annual inspections, and I'd estimate that a good 50% or more of the club racers out there are not using pretty new shiny Sparco, OMP, or G-Force suits, instead choosing to use standard undies and older Nomex/Prothane/etc fire protection. Up through 10.31.07 these suits were perfectly legal to use, but with a stroke of the pen today they're all not.
What this means is that a significant portion of the SCCA Club Racing community is now going to have to spend money on fire protection that may or may not be as good as what they had.
Or, more importantly, maybe they won't... - GA