It’s been a long time since the last post … Finally I’ve got something to say, again ;)
For some time now I’m using the KDE4.2beta packages for Debian from kde42.debian.net and they work very well. Much better than KDE 4.1 from experimental. Today I tried upgrading my system and the package management tried to remove my whole KDE 4 installation. After some digging around I found out that libstreamanalyser0 held back kdelibs5 from being upgraded and due to unsatisfied dependencies the whole KDE installation was going to be removed. After upgrading libstreamanlyser0 by hand and some other packages, everything is fine again.