Randar the Lava Liza writes « Finally there is a tool to put default Apple AirPort hardware into monitoring mode for wireless security analysis. KisMAC is a variant of Kismet that runs natively on Mac OS X. It requires a special driver to be installed to run the AirPort hardware in monitoring mode, and has built-in WEP cracking tools once enough weak packets have been sniffed. »
http://apple.slashdot.org/article.pl?sid=02/12/03/1342212