This is JOE (Joe's Own Editor), a full featured terminal-based text editor.

It is v3.7 and was cross-compiled using arm-linux-gnueabi-gcc-4.6 under Ubuntu to run on Kindle Touch. Nothing was changed in the source.

You will need to run it inside a terminal. You can get a Kindle Touch port of XTerm here:
http://www.mobileread.com/forums/showthread.php?t=179286

It might run on other Kindles and ARM devices, but I havn't tested it.

Use "CTRL + k + h" inside joe for help.

More info and the full source:
http://joe-editor.sourceforge.net/

-- Fvek on mobileread.com