This is an interesting program for Mac. The idea is to “listen” for wireless networks. Recently, the SVN version added support for passive mode of Airport Extreme cards, which are in the latest apple computers. The program also supports various modes of cracking of WPA and WEP encryptions. I build the latest version from yesterday as UniBin and you can get it from here. If you download the latest binary from their website you will not have the coole mode. If you want to build it yourself from the latest svn, consult with binaervarianz.de

P.S. The license is GPL and I cannot be held liable for anything caused by that program