Percussion Software announced that it has formed a strategic partnership with Ephox, provider of XML and XHTML authoring tools for enterprises. At the same time, Percussion introduced Rhythmyx 5.7, the newest version of its Enterprise Content Management System. Rhythmyx 5.7 provides new content creation/editing and analysis tools, features a new cross-platform rich text editor, EditLive! for Java 5.0 from Ephox, which offers content authoring capabilities, international language support and accessibility features for Section 508 compliance. EditLive! for Java 5.0, is certified on all Rhythmyx-supported browsers and platforms – including Netscape, Internet Explorer and Firefox for Windows and Safari for Mac. Rhythmyx 5.7 also adds Content Lifecycle Analysis, a capability that allows Web site managers to track and analyze content as it proceeds through the production lifecycle.,