About AirPort Extreme Update 2007-002
This update is recommended for all Intel-based Macintosh computers and improves compatibility with AirPort Extreme base stations and networks.
This update includes the content from the AirPort Extreme Update 2007-001, and addresses a security issue as described in: http://www.info.apple.com/kbnum/n305031

This update also improves compatibility for the MacBook Core 2 Duo and the MacBook Pro Core 2 Duo when using certain third-party access points configured to use WEP Open System security.

http://www.apple.com/support/downloads/airportextremeupdate2007002.html