Scrapbox - A new style of note-taking that lets you create, discuss, and learn together in one self-organizing space.
A5 - Takes notes in your browser. Elegant & simple.
Additor beta - Pocket and Evernote got a minimal and collaborative baby
Falcon for iOS - Writing notes made simple
Unit Notes for iOS - A simple and powerful note-taking app.
Chars - Unicode Symbols Keyboard for iOS