I see why you chose TinyMCE as default, it simply the best.
But I found an other free tiny wysiwyg editor, maybe you are interested in embedding this.
I mention this becouse I’m addicted to code as accessible as possible and this editor has some semantic tools.
Maybe you integrate this as alternative editor lite version for the real noobs out there, who copy and paste from word (lol).
http://fileforum.betanews.com/detail/XStandard_Lite_for_Windows/1065989311/1
License: Freeware
Type: Mozilla/Firefox/Netscape plug-in and ActiveX control for IE/ Windows apps.
Download XStandard Lite | XStandard Features
The Lite version of XStandard is freeware and can be used in commercial applications. Features not supported in the Lite version include the ability to customize the toolbar, Word clean-up, and features dependent on Web Services (ex: spell checker, communication with third-party content, file drag & drop).
