KDE goes cross-platform with Windows, Mac OS X support

"The open-source KDE desktop environment is making the jump across platforms with broad support for Windows and Mac OS X. The core KDE desktop programs, the KOffice suite, and the Amarok music player are actively being ported."

http://arstechnica.com/news.ars/post/20080123-kde-goes-cross-platform-with-windows-mac-os-x-support.html