At this moment, for me, kaddressbook? Akonadi did not get configured right, I had to follow this advice to get it to start working: http://forum.kde.org/viewtopic.php?f=20&t=79717&sid=ce96096a96a9d8ca3ebb13105dce3d21&start=10#p137002 Having done that yesterday I noticed that the concept of contact categories is missing. Today I found that I only get empty dialogs when I attempt to edit a contact! So for me kaddressbook is unstable. - Allen