Apart from the GTK, there also exist and official QT gui for GNUnet. It would be nice if that found a place in the portage tree as well. http://gnunet.org/download.php3?xlang=English
Please update gentoo version this bug applies to.
Updated the Gentoo version. BTW, there is an ebuild for it in the Zugaina overlay.
youbroketheinternet overlay is taking care of this one, currently
Seems that development of Qt client is abandoned - last commit in 2011 - https://github.com/bratao/gnunet-qt/commits/master