A small (hopefully soon to grow) HowTo on installing and using the kdePIM packages.
Use the package manger on the pma and choose network installation. Use the openPMA:Feed to obtain the desired packages.
All kdePIM packages depend on kmicrokdelibs, so make sure you install them too!
All kdePIM applications have a common basic settings structure plus application dependant settings.
NOTE: At the moment some configuration dialogues are not completely visible. We are testing new packages fixing those issues at the moment. Stay tuned and check the openpma-users mailing list  for announcements or subscribe to the developer mailing list  if you want to help testing new packages.
Most applications work quite ok.
There is a quite detailed documentation available at pi-sync: http://www.pi-sync.net/html/documentation.html
Syncing via TCP to another kdePIM (e.g. on a desktop computer) works fine on the pma. Evangineer has done this and should write it up some day!