[whpalmer4]

Your request is a bit ambiguous, and would probably be better posted in the OmniFocus Extras forum than the OmniGraffle Extras forum :-)

Do you just want a list of the project names, or do you need actions as well? How often do you want to update this list? There aren't really any hooks to drive such a script as you check off actions and projects, so you would need to run it yourself or have it run from iCal or the like.

How about posting a screenshot of what a few sample projects look like and what you expect them to produce for a .txt file?