MusicBrainz Picard version 0.9.0 has been released; the updated ebuild is available from http://proj.juffo.org/musicbrainz-overlay/ebuilds/picard-0.9.0.ebuild or the "musicbrainz" layman overlay (svn://svn.juffo.org/musicbrainz-overlay).
In CVS. Thanks for your work, Marti.