I started porting my MD3 loader to Ardor3D:https://github.com/gouessej/Ardor3D/tree/master/ardor3d-extras/src/main/java/com/ardor3d/extension/model/md3
I should end up with doing that in less than a week. I'll provide a complete working example as Renanse did for the MD2 format (in ardor3d-examples of course). If you have some experience in MD3 loading, please look at my source code (which is commented, especially the class Md3Importer), another code review can still be useful, I'm a human being, I can make mistakes. Best regards.
P.S: I just have a problem with the management of .skin files but the rest should work.