Here’s a Plugin to Keep an Eye On
Epic Post Type
A library for the creation of Custom Post Types, Custom Taxonomies, and Custom MetaBoxes on an EPIC Scale.
A very interesting plugin from Andrew Terris and Eric Marden. This will most certainly help out with some of the busy work with setting these up, included getting the permalinks working, custom icons, and some cool metabox functionality. No documentation as of early July ’11, (except within the code itself.)
in the .org repo:
and on github: