This is mind mapping 101, only using an iPad. I've tried any number of mind mapping programs and they've all come a distant second to using a pen and paper (a whiteboard is even better). The one thing that would be better than pen and paper would be if it also did an audio recording at the same time and synced the handwritten notes with the recording (so that you can quickly find the audio that related to a particular part of the map).<p>This is an incredible killer feature in Microsoft OneNote but I'm not sure how it could work in a non-linear mindmap.