This module was written to solve a need with the Content Construction Kit (CCK), where it had a tendency toward outputting content in a not-very-pretty way. And as such, it dovetails nicely with CCK, adding a "template" tab to CCK content-type editing pages and pre-populating the templates with CCK's default layout. This makes it easy to rearrange fields, output different fields for teaser and body, remove the field title headers, output fields wrapped for use with tabs.module (part of JSTools), or anything you need.