I would like to revise my original review now that I am a little better informed. I went back and took another longer look at WriteRoom and learned about some relatively hidden features. While WR may only allow you to create plain text and rich text files as the application's native formats, you can save your files in Word and Word XML formats (Open Document is definitely missing). It would be nice if this feature were a little better advertised and were placed under a more prominent location in the menubar (maybe under "export" instead of "save as"). It is very simplistic and is rather lacking in features, but it does offer a decent amount of options to customize it. It would be nice to have more options in the menubar than in the preferences. It's much easier and more intuitive to make changes to the document from the menu instead of having to turn things on and off in Preferences for each document. I suppose that the main selling point for WR is achieved in that it takes all the clutter off from the screen so you can create a very basic document or rough draft. In the end, it is just a text editor and probably will not replace a full featured word processor such as Word, Nisus Writer Pro/Express, Mellel, etc.

Clearly this application will only appeal to a rather small niche. I still believe that using Freeverse's Think and the text editor or word processor of your choice is the more customizable and fastest method that is possibly less expensive and achieves the same results. Try both Think and WriteRoom and see which method works best for the way that you write and which keeps you focused.