From Little 'b' Software:
Netlogger is a software to log access points on the Nokia N95 and other Symbian devices. It Allows you to see if an access point is open, WEP, 802.11, or WPA encrypted. This version is free but there is another version that will log all open access points to your landmarks data base so they can be viewed on the map and located. It's ideal for easy WLAN auditing. This version is the first release on CNET Download.com.