Really nice work, working also with 2.7 SVN. Also the completely new TineMCE 3.0 feels quicker and "better" than the old one.
One suggestion: The FCKeditor module has a WBlink module (where you can set and insert links from a list that includes all pages on the current WB installation).
Another suggestion: On the FCKeditor module (and previous but unsafe WYSIWYG modules) you can upload, create and select the folder and files from the /media folders via Links and Images. Would be cool here, too.
But cool that another modern WYSIWYG editor besides FCKeditor will be available for WB.