Try putting a fresh 10.4.8 install on an Intel Mac and running the new Broadcom exploit
against it. Now try it with the patch Apple released a month after the Black Hat presentation. Is this the same bug? Did they reverse engineer Apple's patches to find this? Why are they NOT claiming that this is the infamous bug? Why would they bother faking an exploit in the first place? Why isn't Apple listed as a vulnerable vendor in the MoKB advisory? My opinion is that the rabid response the Gruber's fans have turned them off from ever "addressing" the Mac community with any "proof" they have to offer.
Regarding the old Airport bug I found -- its the hardware I happened to have. If you want to send me a shiny new Intel Mac, I would be more than happy to start dumping wireless driver bugs for that platform as well. Hardware hacking is expensive dammit