Echoing another thread. I think Masterplan has the potential to be the best planning / thought organization tool around.
I threw some extra change your way. :) I think projects like this deserve all the support they can get, and I really admire your work ethic and that the project is available as OSS.
P.S. If I could make one suggestion it would be to allow pasting images from clipboard, but I'm sure this is already on your roadmap.
Keep up the amazing work!