Easy install and and run....
If you don't enter an area code when run, the application will try to determine it from your IP.
The application will also do a quick time check against a time server.
For on systems with Ruby-Gnome, I've tested this app on:
Latest version (as of 1.8) should run even without an internet connection if an area code is given... it will try to connect, fail, and keep going.