Tunnelblick is a ready-to-use Graphic User Interface (GUI) for OpenVPN on Mac OS X. It provides easy-to-use control of OpenVPN server and/or client connections.
It runs on OS X Tiger (10.4), Leopard (10.5), and Snow Leopard (10.6). It comes as a ready-to-use Universal application with all necessary binaries and drivers (including OpenVPN and tun/tap) included. No additional installation is necessary -- just add your configuration and encryption information.
Tunnelblick is free software licensed under the GNU General Public License (GPL) Version 2.
There is a discussion group and wiki documentation.
Thanks to Mjam for the good food