Search by network name: homenetwork
or by MAC address: 00:01:0a:22:3f:a1
To configure firefox, go to about:config and edit geo.wifi.url to be "http://geomena.org"
To configure opera, go to opera:config and edit Location Provider URL to be "http://geomena.org"
See geolocation in action by looking up your location.
Sourcecode is available at http://bitbucket.org/donpdonp/geomena/.