Freemind and Attack Trees?

Anybody else tried/trying to use Freemind for building threat models or attack trees?

Obviously not ideal, but it is the only decent starting point. To me the Microsoft Tool is too restrictive and Trike is too clumsy.

Several weeks ago, end I created Threatmind on Sourceforge to explore the possibility of making modifications to Freemind to make it more useful for representing threat models.

Any takers? If so, subscribe to threatmind-talk lets throw out some ideas!