When I'm writing a TeX or LaTeX document, I almost always have VIM
on one side of the screen and xdvi on the other previewing the document.
While dedicated TeX editors exist — some of which are even approximately
WYSIWYG — all that I'm really after is a VIM plugin that would control
xdvi, scrolling it to the part of the document that I'm currently editing and
running tex occasionally to update the rendering.