I would like to see the 3d power pack offering an unfold of objects that curves in 2 dimensions. That would make a lot of sense for breaking down complex models for i.e. laser cutting.
This would be a great feature. And there is an increased need with the increase in digital manufacturing.
It comes down to differentiating between developable and non-developable surfaces.
A developable surface can be unwrapped accurately. I do this all the time on projects. I have experimented with both VW and Rhino. With VW I have seen some anomalies when using the existing Unfold Surfaces command on more complicated shapes.
A non-developable surface curves in two directions at the same