Version: (using KDE KDE 3.5.0) Sometimes I like see more information instead nices screensavers without touch keyboard or mouse. This info not a CPU coolness or memory usage. I like the last RSS message, the last mail message. The mockup is here: http://www.kde-look.org/content/show.php?content=33176
Your mockup seems almost identical to Kontact's Summary view. It would probably be trivial, or at least fairly easy, to implement a screensaver which launched Kontact in the root window, or simply brought the existing Kontact instance (if any) into focus.
in principle, this is exactly the same *** This bug has been marked as a duplicate of 114844 ***