jarednova

ClickToEdit will make your site ‘live’ to authors so they can edit titles and body copy. Additional functions mean you can make any piece of content: title, body or custom field, instantly editable. Great for tweaking copy or fixing errors on the fly.

Click to Edit

Requires at least:  3.0 Tested up to:       3.5 Once installed, titles and body copy can be easily tweaked by authors right on the live page instead  …

MyWebsiteAdvisor

ChrisHurst

Plugin for WordPress Developers to enhance Theme and Plugin Editors on their WordPress site. 
Uses the Codemirror library to make the default theme and plugin editors for wordpress more powerful.
Developer Website: http://MyWebsiteAdvisor.com
Plugin Page: http://mywebsiteadvisor.com/tools/wordpress-plugins/developer-code-editor/
Requirements:
Plugin is for WordPress Developers!
To-do:

Developer Code Editor

Plugin for WordPress Developers to enhance Theme and Plugin Editors on their WordPress site.

Click to Edit vs Developer Code Editor