Hi David. This is a cool app. I'm hesitant to download and run it on my computer, as the domain name is pretty funky, and there's not a whole lot of explanation about it. But I like the idea. Have you tried out my typewriter-ish web-app — first draft?
http://beta.firstdraft.io. Let me know what you think, and whether you'd like to collaborate. I've got a good start.