kdepim-3.4.0-1 depends on a few libs from kdepim-devel, which pulls in a huge chain of -devel package dependencies (through its kdelibs-devel dep), bloating the "normal KDE user" install. The files that cause this and should possibly be moved to the main kdepim package are: libakregatorprivate.so, libkmailprivate.so, libknodecommon.so
it's fixed in kdepim-3.4.0-2. thanks for your report.