Been a newer version of Thunar out for almost a month now. Be nice for a update.
I'd second that. Besides, it's a RC, perhaps it could be ~x86 too !
I tried making an ebuild for it and exo but kept failing. Anyone else want to try to make one?
If people are still looking for it, Moloh has Thunar 0.5 as part of his XFCE4.4 RC2 ebuilds at: http://dev.gentoo.org/~moloh/ebuilds/
0.5.0_rc2 has been added to the tree. Give it a few hours to hit your local mirror.