Hi, you need to add more features before you can really charge for it.
Currently it loads 3D models / BSPs, and allows you to select wireframe or transparent view which is nice, but I have some suggestions as to what might be useful:
1. View Limb data
2. Texture object
3. Apply visual effects to the object (inc. FX shaders etc.)
4. View animation information
5. Rotate / Scale / Position object
this one would be handy...
6. Load multiple objects at once, and be able to position / rotate / scale etc. them, then be able to export DBA code to setup the objects.
Arguably this would make it into a slightly different kind of program, but if you want to charge for it, I think it will be necessary.