I installed it today just to check it out. Its kinda neat and the qapt plugin? works like gdebi is supposed to work. click on a .deb and it installs.
Description-en: KDE package management tool using PackageKit
PackageKit allows performing simple software management tasks over a DBus
interface e.g. refreshing the cache, updating, installing and removing
software packages or searching for multimedia codecs and file handlers.
This package provides a KDE package manager based on PackageKit,
as well as package management support for the KDE desktop.
Homepage: http://kde-apps.org/content/show.php/Ap ... tent=84745
You can run it from System>Apper
or in System Settings>Software Management