Call Meter 3G - Call Meter 3G is an app that acts as a monitoring tool for all your calls, messages, and internet data.
Get Free Fucking WiFi - Find the best fucking WiFi just around the corner.
Data Usage - Data Usage Monitor | Your guard against data plan overages.
Instabridge - Crowdsourced free wifi (now on Android)
DataMan – Data Usage Widget - DataMan – Data Usage Widget is an application that enables its user to know how much data he has spent from the total internet package he is using.
WifiMapper - Find free WiFi anywhere in the world