First, the menu items and other GUI elements could be made more friendly by making them more similar to Microsoft Word than a LaTeX editor.
Also, the language used to describe TeXmacs could be made more friendly. The TeXmacs web site has the following description:
“GNU TeXmacs is a free scientific editing platform designed to create beautiful technical documents using a wysiwyg interface.”
A more friendly way to say this would be:
“TeXmacs is a WYSIWYG word processor that is particularly good for documents containing math.”
“TeXmacs is a WYSIWYG word processor that is better than Microsoft Word for documents containing math.”
What do you think?