Recently, I visited the AWMN (Athens Wireless Metropolitan Network) homepage and I was pleasantly surprised with their new wireless node tracking software. AWMN, as most wireless community networks, used to use NodeDB for tracking their network nodes. Now, they have developed a new system, called Wind, that uses Google Maps. Wind was developed with PHP, MySQL and Smatry (a PHP template engine) and it is under the GNU General Public Licence.
You can find the Wind project page here.
Kudos to the development team for doing such a great job.