VDmitryV

This plugin allows developers to use the WordPress WYSIWYG editor for their own 
fields during plugin/theme development, for example – for Custom Post Types. 
Code is based on WordPress the_editor code.
Sponsored by GlobalBases.com GmbH WebBases & WebSoftware http://www.globalbases.com
PLEASE NOTE: Plugin is in alpha stage of development, so don’t expect it to be fully working. Don’t expect anything.
Known limitations: working only on post create/edit pages

WYSIWYG Helper

Plugin for developers that want to use WYISIWYG in their plugins/themes.

jk2228

kem226

Have you ever wanted to keep running notes when composing your posts ? Scratchpad is here to make composing easy and fast! Your notes are saved with the post you’re composing!
Scratchpad can be used to keep an outline for the post, visible next to the post, or to have a list of links or snippets to refer to.

Scratchpad

Scratchpad provides users with a running notepad while composing a post in Distraction Free Mode. Notes are saved along with the post!

WYSIWYG Helper vs Scratchpad