webkit-gtk-2.2.1 stable is available: http://webkitgtk.org/ http://webkitgtk.org/releases/webkitgtk-2.2.1.tar.xz
*** This bug has been marked as a duplicate of bug 486484 ***
This ebuild is currently available from the https://github.com/Heather/gentoo-gnome overlay and with it more gnome 3.10.x related ebuilds.
Thanks, it would be handy to have access to that overlay in layman.
I don't want to add this overlay to layman for now because I Still waiting for gnome team review. Only then I will know if I should use separated overlay or not. And using it without layman is not that hard.
added as gnome-next to layman after more requests