For those of you VPN users with a Mac, you may be aware of Tunnelblick. Tunnelblick is an opesource OpenVPN interface for OS X. We were thinking of writing an installer for XB for tunnelblick, but I think some people were reporting having exceptional difficulty getting TB to work for Leopard. Has anyone got the latest version of OS X, and can confirm or deny a compatibility issue? What are your feelings about Tunnelblick? Have you used it and switched to viscosity instead?