Jordan Sherar, of Widefido, has just released version 1.o of TodoPaper, a Windoze based action list manager modelled on TaskPaper from Hogs Bay Software on the Mac. I use TaskPaper for my GTD list management at home, and since it is based on simple text files, having matching software on my laptop enables me to keep my action list with me on a USB key wherever I am.
The beta version of TodoPaper was called Codename: Merlin in deference to Merlin Mann of 43Folders fame.
I should also note that the Tasko website also enables one to store one’s taskpaper files on the web in an easily accessible form.
Full Disclosure: I was a beta tester, and I did provide some feedback on the product. Also, Jordan Sherar is using an endorsement of mine on the Widefido web site. The endorsement is real, I do use and like the product.