Bug Fixes in KDE Base
Let klauncher be a bit more tolerant about dbus names: don't assume that kfoo will register as org.kde.kfoo when its desktop file doesn't have X-DBUS-ServiceName, allow the domainname to be anything, i.e. watch for "*.kfoo".
This should minimize the number of occurences of the famous klauncher error quite a lot.
This fix will be in KDE-4.2.