For now x86 base factory, 11.2
Command line tool "osc" (try to get a not too old version) and build tool (for debian: http://download.opensuse.org/repositories/openSUSE:/Tools/Debian_5.0/all/build_2010.02.02-1_all.deb). For Suse install packages osc and build.
To get the project:
osc co KDE:Netbook
KIWI - creating a harddisk image
As base we use KDE Four Live. The description what will be built in the end is in the kiwi file.
Find it in your checkout in KDE:Netbook/plasma-image/kde-four-live.kiwi
For more documentation about KIWI, see here: