CopyWrite seems like a pretty cool little app. My only problem is that, even though it keeps all your individual documents as separate files inside a project folder, it is using a proprietary format for these files. It doesn't seem like it would take much to use RTF or some sort of XML file so that I could (a) recover easier from corrupt projects and (b) easily move them into another program. It does have pretty good export options, so perhaps it's just the fear of corrupted projects that bothers me.