CMS is so Wired. If you were not burdened with years of previous experience, why would you ever consider an CMS or CES (Content Management System or Content Entry System) which did not have RSS as the foundation of the the design. In other words, RSS should be the foundation of the design of any web applicatin which assists in the creation of a web site.
My son would probably call most CMS products "old school." (It should be a four letter word.)