A brief conference report documents a gathering, sponsored by the University of Toronto’s McLaughlin Centre, of representatives of the Canadian medical genetics community. They were invited to consider issues concerning new genomic technologies in prenatal clinical practice, as a precursor to practice guidelines and recommendations for policy makers. Invited guests provided international experience and insight.   As microarrays and whole-exome or -genome sequencing transition from the postnatal context and are applied for prenatal screening or diagnosis, the related issues become more acute. Participants agreed that national coordination and sharing of resources and experience should be advocated.   (By Janet Buchanan, http://jmg.bmj.com/content/early/2015/06/03/jmedgenet-2015-103223 )