You can actually bootstrap a small text editor on mobile browsers using a data: URL and a tiny text editor in html (literally just a form with a text box that w

You can actually bootstrap a small text editor on mobile browsers using a data: URL and a tiny text editor in html (literally just a form with a text box that will download a file with the contents of the box when you hit submit). A pain, and not accessible if you don't know the google incantations to figure it out, but doable.