Wordpress 3 includes a beautiful implementation of TinyMCE that, In my opinion, works much more easily compared to original TinyMCE which it's based.
Stuff that are wonderful: - The HTML/source view like a tab as opposed to a popup - A stylish skin - Great image handling, including crop and re-size
What should i 'steal' from Wordpress to obtain a working version of Wordpress TinyMCE to be used outdoors Wordpress, i.e. inside a custom application? Clearly the look processing is completed in PHP too...