Autoview and associated files are available from http://www.glue.umd.edu/~deego/emacspub/autoview. This userguide is available from http://www.glue.umd.edu/~deego/emacspub/autoview/usrguide/usrguide.html.
While you are editing your file.tex, autoview will (run in a separate emacs and) continually, intelligently, and automatically keep processing your latex file, generate a .ps file and gv (view) the file for you.. You can modify it to suit your needs..
These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.