Ars Technica: Deep Inside KDE 3.2
binner writes "Ars Technica features an article 'Deep inside the K Desktop Environment 3.2' written by Datschge and Henrique Pinto. After introducing KDE and the project's structure the authors present some new applications of KDE 3.2. After that they explain the key KDE technologies KParts, DCOP, KIO, Kiosk and KXMLGUI and give examples for code reusage and an overview of efforts to integrate non-KDE applications. For developers Umbrello, Cervisia and Valgrind with KCachegrind are introduced and of course KDevelop 3.0. An examination of licenses precedes the positive conclusion."
emerge -C kde does not remove KDE.
emerge -C kde removes the KDE metapackage, which is a no-content package.
emerge -C kde does not remove the dependencies of the KDE metapackage.
On top of all that, emerge kde is not neccessary to enjoy KDE.