Texthaven is a note-taking app for creating, editing and formatting Markdown text notes and viewing images. Its
integrated file browser makes it easy to find, organize and view your notes.
Notes are stored in folders on your phone or tablet. Create a folder for notes and images of travel ideas. Create another folder to use as daily journal or research notes for your novel.
More details (and screenshots!) are on the website at http://www.texthaven.com/android/