Collaborative notes LIst, see http://li.iriscouch.com for demo.
It is a pure Couch Application backed by CouchDB and built entirely in JavaScript, using Knockout JS. It's also using TinyEditor. It's running on Iris Couch - easy cloud CouchDB.
It was originally created as Todo-List based on Thingler (still available in a branch), but later transformed into non linear notes application, inspired by Tiddly Wiki and instigated to appear initially by Google decommissioning its Notebook.
To run it yourself, push it into you couchdb, e.g:
$ node_modules/couchapp/bin.js push app.js http://your.iriscouch.com/db
And open it in your browser, e.g.: http://your.iriscouch.com/db/_design/app/_rewrite/ or http://your.iriscouch.com, if you enabled vhosts rewrites.