A5 - Takes notes in your browser. Elegant & simple.
Sublime Text - Sublime Text is a sophisticated text editor for code, html and prose - any kind of text file. You'll love the slick user interface and extraordinary features. Fully customizable with macros, and syntax highlighting for most major languages.
Falcon for iOS - Writing notes made simple
txt.edit - The missing text editor for iPhone & iPad
Chars - Unicode Symbols Keyboard for iOS
Cleartext - A text editor that allows only the 1,000 most common words