And again this net-dialup/ppp package would pull in too much other packages. I think for those who uses one ethernet connection this would be a pain.

The new kdenetwork depends on net-dialup/ppp, which should, in principle, not be included as default. Better to use a USE flag to turn it on or off. This package by default depends on x11-libs/gtk+-1.x, which again leads to glib-1.2.x. This could cause much trouble.