There is an HTML editor that comes with OS X. (In the Utitlities directory, if I remember right.) And yes, it does have a WYSWYG mode. It's a rudimentary HTML editor, but at least it's native. If you know HTML and don't depend that much on the program to create your code, it's plenty good enough. On the other hand, if you can't figure out how to place things on your own using tables, you're better off working in Carbon. TextEdit actually produced RTF documents. It's much more than a plain text editor, as SimpleText was. If TextEdit had support for columns and tables, most people wouldn't need MS Word.