nice work, i like the approach:
- it is easy to add more or less detail, without having complex dialogues
- the file format is readable and can be changed by hand
- GTD is implemented with more than just a list of tasks *cough*
some things I think this app still needs:
- ipython-like tab-completion
- some way to deal with waiting-for tasks which should not appear on the work list
- some idea on how the review process should work. Reviewing means at the least, having a list of projects and being able to determine whether their Next Actions are properly set.
- a minor point: german umlauts in month names make the wx-gui crash, goes away by setting LANG=en_EN.