Mountain Lion 10.8 is released today! Before you upgrade, you may wish to note that there is a known bug of the interoperability of BolehVPN with Mountain Lion which in most cases can be fixed manually. Just requires a bit more fiddling until an official fix is released.
The fix is a two step process
a) Uninstall your old version of Tunnelblick and install it with the new beta version of Tunnelblick
b) If you can connect to Tunnelblick but do not have internet, follow the steps here.
Our BolehVPN Mac installation guide has been updated.
Also for those of you who are using our beta BolehVPN Mac-GUI, this is not compatible with Mountain Lion 10.8 yet and we’re working on a fix!