Aquamacs is a Mac-like version of the powerful Emacs text editor that runs as a standard OS X application. It features extensive customization that enables it to conform better with Apple's standard Human Interface Guidelines (HIG) than standard versions of the editor do. It provides a more Mac-like user experience than Carbon Emacs.
OOoLatexEquation is an OpenOffice.org macro designed to manipulate LaTeX equations. It allows you to create equations and insert them into OOWriter and OOImpress documents as PNG, EPS, and EMF images, while the LateX characteristics are saved in the image attributes. The equations are created with and can be edited through an intuitive GUI. OOoLatexEquation supports an inline mode as in TexPoint which expand simple latex code into appropriate characters using specific TrueType fonts.
TeXwrapper has been implemented to facilitate the interfacing of (La)TeX with the quickfix mode of the VIM text editor. It allows you to run TeX and some tools like BibTeX or MakeIndex at once. If an error occurs, it scans the transcript files and sends a "compiler style" error message to stderr. This program may also be useful with other text editors (like SciTE) which are able to deal with compiler's error output.