OneNote - Get the OneNote app for free on your tablet, phone, and computer, so you can capture your ideas and to-do lists in one place wherever you are. Or try OneNote with Office for free.
Nebulous Notes - Nebulous Notes is a powerful, yet simple, text editor for note-takers, writers, and coders.
Evernote - Bring your life's work together in one digital workspace. Evernote is the place to collect inspirational ideas, write meaningful words, and move your important projects forward.
DroidEdit - DroidEdit is a text and code editor for android tablets and phones with the following features:
Google Keep - Capture notes, share them with others, and access them from your computer, phone or tablet. Free with a Google account.
Jota Text Editor - Jota, pronouced as "i-o-ta", is a text editor designed for a long text file.