WiFi Map - A crowdsourced list of routers and passwords
Jiwire Wi-Fi Finder - JiWire's Global FREE Wi-Fi app uses your iPhone's GPS and network triangulation capabilities to...
Get Free Fucking WiFi - Find the best fucking WiFi just around the corner.
Instabridge - Crowdsourced free wifi (now on Android)
Wifi Locations - A community driven map for free or not free wifi locations.
Café Wifi - Find a space with some coffee and connectivity to get your work done.