My IP Info is an application designed to quickly and easily display the Internal (Private) IP Address of your device, as well as the Public IP Address (as seen from the Internet). It will also determine the GeoLocation of the Public IP (using HostIP.info). Finally it tells you if your device is directly reachable from the Internet by attempting to connect to your device using a simple http request on TCP port 80 from a remote server on the Public Internet.

http://appshopper.com/utilities/my-ip-info