unmerging media-sound/phonon and re-emerging phonon-kde did emerge media-sound/phonon-4.3.80-r1 and kde-base/phonon-kde-4.4.0 which seems to work. the pre_20090520 version is not in the tree anymore though so not sure how this should be handled
17 Feb 2010; Samuli Suominen <ssuominen@gentoo.org> phonon-kde-4.3.5.ebuild, phonon-kde-4.4.0.ebuild: Block old media-sound/phonon snapshot wrt #305609, thanks to Thomas Raschbacher for reporting. That's: !=media-sound/phonon-4.4_pre*