A correction...
QUOTE
If VPN is in use and the Mac is put to sleep and later awakened, the icon will stilll indicate a secure connection when in actuality it is an open connection.
This bug has apparently been fixed in the latest version of Tunnelblick; I don't know which version it is because the application doesn't provide the info. I could have sworn that I tested the new version for the bug, but I must have been mistaken.
Now either the connection is "always-on" or the application automatically reconnects when the Mac is awakened... I really cannot tell which it is because it happens too fast. But when I check the IP address it belongs to Witopia.
Whatever... it's nice to have it fixed.