You are seeing a live demo for the simple wiki written with a couchdb backend using the django stack.
At the moment user registrations are cancelled but you should be able to create any number of pages you want and edit them anonymously. Please use restructured text as the markup for the wiki.
Also this page is immutable to unauthenticated users.
Feel free to test by creating a page and let me know your opinions. Or just head over to the TestPage and edit.
The code for this wiki is available here.