Tres Cool
Makes breaking (crash) 3DMLW too easy, but, makes a great outline for a project.
The texture images have to be put in the target directory manually, but that's fine, keeping those organized are up to the blenderer (artist/developer).
On export it prompts to overwrite each file so the user should (and will learn to) delete all files they intend to replace and make copies of any they have modified manually they want to keep.
Regardless, very useful, glad to see blender in this arena.