Fedora and OpenJDK
Andrew Haley and Thomas Fitzsimmons wrote a really nice article for Red Hat Magazine called Open source project: OpenJDK detailing our libre java journey from the perspective of Fedora and Red Hat. From Sun’s first announcement, GNU Classpath & GCJ, bootstrapping IcedTea, gcjwebplugin, webstart, PPC and the zero port, OpenJDK6, to being (almost) Java SE Compatible. Go read it!