As said, the newest version of shotwell removes the dependency on gnome-vfs, as of http://git.yorba.org/cgit.cgi/shotwell/commit/?id=bf6a76134ff4404e0c84c700e7c67637ec46d9c9
Thanks, + 02 Jun 2011; Justin Lecher <jlec@gentoo.org> shotwell-0.10.ebuild: + Remove unnessecary DEP on gnome-vfs, #369743 +