Split KDE ebuilds for Gentoo
Developers of Gentoo Linux have started work on splitting monolithic KDE ebuilds in portage. This way you will not have to compile and install the entire, huge kdepim package while only needing only one application from it. So this can save a lot of hard drive space and compilation time. Updating also becomes easier and faster as bugs are usually only in one application. There will also be meta packages (like kde-meta, kdeedu-meta, ...) that will enable you to install all the ebuilds/applications belonging to them. For KDE 3.4 we will have both, monolithic and split, ebuilds. Starting with KDE 4.0 there will only be split ones.
More info about all this is here:
The KDE Split Ebuilds HOWTO