Whiskers is an educational PocketPC application under the GNU/GPL license which tries to exploit all the hardware available on most common PDAs providing a link between different features such as GPS-Bluetooth-Wireless. Generally whiskers was built with radio reconnaissance in mind as help for geocachers or wardrivers but also as penetration and audit tool. There is support for in depth device scanning, triggering actions based on filters when certain devices are in range, centralized GPS logging with search functions for private or public databases and much more.