http://lifehacker.com/software/gtd/down ... 245740.php
And here's the text:
Windows/Mac/Linux: Free personal organizer ThinkingRock helps you work David Allen's Getting Things Done methodology to the letter right on your desktop.
Collect your thoughts, process them into projects, actions and reference and review your action lists by context and project. ThinkingRock isn't the prettiest interface you'll ever see, but it's free, cross-platform, and is clearly developed by disciples of The David. The app also stores all its data in a transparent XML file for easy-peasy thumb drive access, which - in a cross-platform word - rocks. ThinkingRock is a free download, versions available for Mac, PC and Linux. Thanks, Tomu, John, Mike, Matthew and Jeff! — Gina Trapani