The key to good writing is not that magical glass of Bordeaux, the right kind of tobacco or that groovy background music. The key is focus. What you need to write well is a spartan setting that allows you to fully concentrate on your text and nothing but your text.
Writemonkey is a Windows zenware writing application with an extremely stripped down user interface, leaving you alone with your thoughts and your words.
Rentry.co is a markdown pastebin and publishing service with preview, custom urls and editing. Fast, simple and free.
Liquid Story Binder XE is a uniquely designed word processor for professional and aspiring authors, poets, and novelists. Writing software for those who require the editing ability of a commercial text editor as well as a document tracking system.Discontinued
Last update was around 2011, can still be bought.
SSuite NoteBook Editor is a free portable text editor that has all the functionality to start you on writing that important novel, short-story or article, with enough bells and whistles to help out. It also includes all the necessary editing short-cut keys for power users and...This app doesn't have any features at the moment.
JDarkRoom is a popular, simple full-screen text file editor with none of the usual bells and whistles that might distract you from the job in hand. If you are writing a speech, novel, essay, thesis or just need to be able to concentrate on your writing, then JDarkRoom may help...This app doesn't have any features at the moment.Discontinued
Last version dates from 2010.
For Mac users to write without distractions. WriteRoom is a full screen writing environment. Unlike the cluttered word processors you're used to, WriteRoom lets you focus on writing. Requires Mac OS X 10.7+Discontinued
The program is no longer available for iOS. The Mac version, v3.2.1, released in August 2012, can be still bought from the AppStore.