KisMAC no longer uses googlecode. Please update your bookmarks to use http://kismac-ng.org . KisMAC's new svn repository can be found at http://svn.kismac-ng.org/kmng/
Passive wireless scanning software for Mac OS X. Supports capturing packets through Apple's internal AirPort hardware, Kismet drones, and a variety of USB and PCMCIA cards.
Supports GPS mapping of found network and includes WEP/WPA cracking features, with active reinjection on Prism2 based cards.