EdgePad is a basic text editor supporting edgewrite and the chatboard.
GP2X-Write is a simple text editor which permits the editing of huge text files, in both DOS and UNIX mode, using ISO8859-1 character encoding.
KdiTor is a simple text editor.
nano2x is a port of nano - Nano's ANOther editor, an enhanced free Pico clone. Nano runs in console, so you should use it with sterm, under telnet or ssh.
Write2x is a SmallBasic-based text editor.