GenSmarts version 2.1.1.92 or higher works with FTM 2012:
http://www.GenSmarts.com/versionHistory.html
Aside for the update for FTM 2012 ( FTM2012 ), 2.1.1.92 also includes:
a tweak to recognize place names with no period after an abbreviation, such as "St Bernard"
a workaround for occasional bad data being passed by RootsMagic when running withing RootsMagic (error GSEC99)
a tweak to remove the limit of 2GB on files openable by GenSmarts
Tags: RootsMagic Family Tree Maker