Here is the ebuild for xfce4-taskbar-plugin-0.1.0, tested successfully here with x86 using Xfce 4.1.9 beta from portage. It's a nice little plugin for the Xfce panel that allows taskbar functionality without running the separate taskbar.
Created attachment 41602 [details] xfce4-taskbar-plugin-0.1.0.ebuild
in portage thanks for the bug
Created attachment 42746 [details] 0.2.2 ebuild Updated ebuild for xfce4-taskbar-0.2.2. Note the updated dependency (removed "xfce-base/xfce4-base) as per bug 67274. http://bugs.gentoo.org/show_bug.cgi?id=67274