KDE/APT is made of two software packages: KIO/APT and KPkgManager. The first one gives access to apt-cache-like functionalities in Konqueror. The second allows very simple package management: install, remove and update/upgrade. It is designed to provide a simple but lightweight tool for everyday use while more complete tools like aptitude are still necessary sometimes.
For people like me who like to have the KasBar and gkrellm for monitoring, I adapted the smooth theme for Karamba to make it thiner. Just check a small screenshot (320x200) and a wider one (1024x768).
You can download it here. The theme file is doudou.theme. Be warned that I didn't adapt all the modules that are available.
A ruby-based autobuilder. Look at the readme too.