WriteRoom for vim, emacs

Wait, isn't WriteRoom ripped off from Vim and Emacs, making it sort of absurd to have an Emacs with a writeroom mode? What benefit does this have?

there was also some plugin for vi just a while ago: <a href="http://projects.mikewest.org/vimroom/" rel="nofollow">http://projects.mikewest.org/vimroom/</a>