Is there a way to set rotation on inset maps to match data driven maps
For 2 Data frames to be rotated in sync can be done if you set a field with rotation value http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#/Using_a_field_to_define_the_rotation_angle/0103000000m2000000/
http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#/Choosing_a_spatial_reference_based_on_a_field/01030000011s000000/
you can sync inset maps with arcmap bookmarks and the 'extent indicators' http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#//00s900000005000000.htm
Note: Bookmarks are stored in .mxds however 'My Places' do not (separate file .dat)