GTD-Free

Program: GTD-Free (Get Things Done free)

License: Open Source, GNU GPL

Description: GTD-Free is personal TODO/action manager inspired by GTD (Getting Things Done®) method by David Allen (see David Allen&Co. official site for more information). GTD-Free tries to be simple and easy to use management tool. GTD-Free is free open-source software.

Website: http://gtd-free.sourceforge.net/

The program is as such already fully portable, but I think it'd make a nice addition to ToDoList, Task Coach et al., already on the portable apps list. It's somewhat more process oriented compared to ToDoList yet a bit easier to use than Task Coach, which both are great programs.