This shouldn't be too hard to look at, please file an enhancement bug report.
http://bugs.pearsoncomputing.net/show_bug.cgi?id=760
We can file additional information when we start troubleshooting, but as a habit I close all apps before exiting. KAlarm, KMix, KwikDisk, Klippy, and Akregator are in my system tray, which must be closed when exiting. I run with one instance of Konqueror preloaded in memory. Most of the kded daemons are running too.
I added some info to the bug report.
Basically, I see an excessive slow exit if I enable the KDED System Base URL Notifier daemon. With that daemon enabled I see an exit time of about 17 seconds. When disabled I see an exit time of about 7 seconds. Still slow, but better than the other option.In my xsession log I always see the following error:
kdeinit: Got EXEC_NEW 'kconf_update' from launcher
I reported kconf_update as part of the problem in bug report 688 too.
Darrell