The one that did catch my eye was 'Zeroconf Service Discovery'. With the new uses for avahi for iphone printing, etc., it might be nice to have an interface to it in kcontrol. On this topic i have the service working nicely. Avahi should be present before building, and the user/group already created (read the avahi SBo readme for this). I'm using a patched avahi package and also nss-mdns-0.10-i486-1. Zeroconf seems to be working nicely.
This is an example of KControl optimizing I discussed in the etherpad, where a KControl module should appear only when the underlying related software is available. That is, the Zeroconf Service Discovery module should not build when a DNS service discovery service is not available. Or, should not appear even if built when a DNS service discovery service is not installed at run time.
One thing i noticed about themes (which is not super important for me, but my users cry about it) is that standard kde-look.org themes just don't work with trinity. I couldn't compile any of them, and simply changing paths or symlinking doesn't cut it. There is even a prebuilt trinity-domino slackware theme that doesn't work for me on slackware. I would like to get moodin working for trinity ... but need to wait until git is unborked.
I use Slackware. I don't use themes, but point me to a couple of example themes and I'll help troubleshoot.
Darrell