A complete rewrite of PrettyTasks that eventually bring complete OS-X Dock like functionality to the KDE/Plasma Desktop. It will consist of an applet (PeachyApplet) and a containment (PeachyDock).
PeachyDock is being developed in the KDE SVN-repository, in trunk/playground/base/plasma/applets/peachydock. So if you like to you can compile and run it. Currently it still is behind PrettyTasks in terms of features. But it compiles and runs with KDE from trunk. And it will catch up soon... and bring fun and ease-of-use to a desktop near you.
PrettyTasks (old version)
This is a applet to show that icon scaling and task-management combined is possible in Plasma.
It should work with 4.0.x
To compile/install it do:
cmake . -DCMAKE_INSTALL_PREFIX=/path/to/your/kde4/installation