Importing an SVG will require support for Bézier curves, which is a tough lift mathematically.
looks like they've got some support for bezier's internally (and they allow exporting SVG's) so I assume the building blocks should be there? I definitely have no idea, and haven't looked into it though.
It's a shame, because it looks really nice. Maybe I'll check it out for the next thing I do where that's not a requirement. Might be a shame since I've finally learnt how to (basically) use freecad now!