Reed Write extends WordPress giving it the full capabilities of the most popular content management systems on the market.

Advanced remote posting from a wordpress master site to many wordpress clients using xml-rpc calls

This provides an admin UI, based solely on wordpress' custom post type API, that allows you to create Custom Post Types, Custom Post Meta, User Categories, Membership/Restricted/Protected content, Custom Admin Pages/Options, Custom Taxonomies. Soon, I will provide a UI for creating forms.