Coastline - Simple minimalist text editor. Create, open, edit and save plain text files.
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.
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.
Notepad - Most simple text editor. Just plain text, saves in .txt format.