User:ShakataGaNai/MediaWiki Replacement

Concept
If we were to replace Wikinews' MediaWiki backend with another CMS, what would it be? What features would we want? What features would we need?

Requirements

 * Collaborative editing
 * News centric
 * Friendly Comments system
 * RSS/Atom/GNSM support
 * Revision-based article history
 * Skinned/skinnable
 * Mobile version
 * Archive system
 * Real-time search support
 * Editorial Control (limit who can publish)
 * Granular permission control
 * Social media integration
 * WYSIWYG editing
 * Simple in article contemplating
 * Real time article editing (ala breaking news)
 * Easy Lead
 * News Layout, not blog layout
 * Possible blog-esque integration (Columns/Opinions/Editorials)
 * iPhone App
 * Extension Compatible
 * Tagging/Metadata/Categories
 * Ability to added multiple tiers of categories (So that adding "Al-A'amiriya" will auto add "Baghdad", "Iraq", "Middle-east", and, "Asia" BUT OPTIONALLY)
 * Mediawiki/SUL login compatibility
 * Commons support
 * Templates support
 * DPL emulating functionality
 * Multi-byte language support
 * Chat interface for Collaborative article work
 * Ability to have per article chat rooms, with logging

Possible Software
w:Category:Open source content management systems
 * Drupal - features
 * Plone amgine: No on plone. Their idea of wiki is links.
 * phpWebSite - Home site claims there's a wiki for it, but I didn't find a demo.
 * ImpressCMS/XOOPS - Has a wiki modual (wiwimod, no I"m not making that up)
 * Mediawiki, but re-written in javascript to support everything we want :P