Some of you have looked at Personal Brain, as a tool to capture and retrieve information using associative thoughts. I recently interviewed Harlan Hugh, creator of The Brain software about the latest release. Harlan mentioned that he has many customers that use Personal Brain as their GTD system. Personally, this would be a hard thing to do without the ability to sync with other systems and devices, but I do see The Brain as a powerful support tool for getting things done, especially for mapping ideas and visualizing their relationships.
Anyway, if this subject interests you, you may wish to listen to the podcasts and read the posts about my interview.
In a sense, Personal Brain is a true "Mind Mapping"program, although not in the sense that you may think of (e.g. it does not do Buzan-style mindmaps). I plan to use this as yet another tool in my productivity tool box.
I hope you find this information helpful.
Quick summary (and screen shots) of my meeting with Harlan Hugh at KM World: KM & GTD on the Brain
Podcast with Harlan Hugh, creator of The Brain, part 1
Podcast with Harlan Hugh, creator of The Brain, part 2