I just found this very interesting documentary that sheds some more light on the Illanun tribe and why you find kampilan etc. also on Borneo.
It has Swedish subtitles but it's recorded in English:
http://www.ur.se/play/161129
Unfortunately they obviously didn't employ any weapon experts but still nice to see the Kalis, Barong and Kampilan presented on TV as well as them being used in action.
Happy watching for all Moro collectors!
Michael