You might have already noticed the release, a couple of days ago, of WriteRoom 2.0. There’s been some discussion of it at [TUAW] and Ars Technica’s Infinite Loop.
Some users are critical of Jesse Grosjean’s decision to charge a (very moderate, in my view) fee for the new release. That’s a shame, because WriteRoom is more than just a simple full-screen mode. The new features I’m excited about are the typewriter scrolling mode (makes typing long screeds of words much easier) and the live word count (appears in the lower-left corner of the screen, very unobtrusively).
The one change I’m less keen on is the way files are managed. In 1.0, all your files were saved automatically until you explicitly deleted them. On opening WriteRoom, every currently active file was opened, ready to use. WriteRoom 2.0 changes this behavior, and you now need to save files in a specific location and with a suitable filename before you can quit the app.
Other than this minor change (which I shall just try and get used to), WriteRoom continues to impress me and for anyone who spends hours a day writing, is worth every cent.
As for the people who think 25 bucks is too much, their best option is probably to make use of the built-in zoom feature in OS X. This is handy for those of you with a TextMate license, because TextMate doesn’t work with WriteRoom’s “Edit in WriteRoom” feature, and is a decent alternative (at least until Allan Odgaard builds a full screen mode for TM).


WR rocks! Personally I wasn't so fond of WR 1.0's "rooms" which meant that WR wasn't good at working with existing files. WR 2.0 is a big step forward IMHO ...!
If you are interested in writing in full-screen mode, I highly recommend the very versatile Journler. That is just one of a many features in Journler. For starters, it is fully integrated with iLife, Apple Mail and the Address Book. It has folders, smart folders, tabs, bookmarks, etc. Best of all, it is free for individual use and very inexpensive for business or institutional use. Here is the link to the latest Journler 2.1 beta, which, in my opinion, is basically ready for prime time. Here is the link to the Journler Beta Testing Forum. I encourage you to give Journler a try. I think you will be quite amazed.