Wikipedia
WiFi-Where
WiFi-Where is a tool that facilitates detecting wireless LANs using the 802.11b, 802.11a and 802.11g WLAN standards. Versions exist for the operating systems iOS and Palm OS. Originally created in June 2004 for the Palm OS by Jonathan Hays of Hazelware Software, the IP for WiFi-Where was licensed to 3Jacks Software in 2009. An iPhone version of the application was released in January 2010, but was pulled from the App Store by Apple in March 2010. As of 2010, it is available in the Jailbroken Cydia store.