Loading frame by frame just like sprite animation, so we basically need to split the mesh animation into single frames.
Don't game model files generally have their animation stored in them already? Why would you need to import frames?
Anyway, just to clarify, I didn't mean that there should be a modeling/animation window like the Image Editor for sprites. Importing completed models would be all that's necessary, there are plenty of 3D packages out there for modeling and animation.
Again, if someone were to ever make a plugin