Archlinux has it, Fedora has it, but where is KDE 4.1 on Sabayon Linux?
As you know Sabayon Linux depends on Gentoo portage. We use it as our backbone. Portage is a robust package manager and everything in there is pre-tested by its maintainer.
Now portage has its categories with its own developers that create ebuilds and patches. Now from my understanding the KDE team has shrunk desperately lately because they reorganized the team.
As soon KDE 4.1 is done and hits portage, Sabayon Linux will merge it in the 3.5 branch.
More Here