OzTeX on a Mac is Applescript-able.  I wonder if it would be possible 
to create a variation of this in MacSqueak using Andrew's AppleScript 
primitives?  You probably couldn't get the cool incremental 
formatting that you have in WysiTeX, but you might still get 
something powerful.

I recently found a product called Scientific Word 
(http://www.tcisoft.com/) which is a WYSIWYG front-end to TeX -- it 
produces TeX as output, and gives you a WYSIWYG frontend for editing. 
If there's a market for that one, why not WysiTeX?

Mark

>Actually, I was the one with the TeX WYSIWYG editor (called WysiTeX). The
>project was once part of a bigger one in our company, and we intended to make
>it a separate product, but there was no workable marketing concept. You can
>have a look at some screenshots and an explanation of the concept at
>http://www.heeg.de/~hmm/
>Late last year my boss gave me the permission to open-source it. It's not
>working in Squeak yet (it was a VisualWorks 2.5 app), and I have somewhat
>limited time, so don't expect it to be finished anytime soon. If you look at
>my "what if you had..." page on the Squeak Swiki
>(http://minnow.cc.gatech.edu/squeak/940) you'll see that it is one of the
>projects that I'd like to do when I get some time for such stuff from my
>company (which will be sometime this year). However, it did not get the most
>votes until now. The project which most people votet for is Collage, a source
>code management system for Smalltalk. Read all about it on the Swiki.
>
>Hans-Martin

--------------------------
Mark Guzdial : Georgia Tech : College of Computing : Atlanta, GA 30332-0280
(404) 894-5618 : Fax (404) 894-0673 : guzdial at cc.gatech.edu
http://www.cc.gatech.edu/gvu/people/Faculty/Mark.Guzdial.html