Just came across this in the news this morning:
http://news.ninemsn.com.au/national/865584/mistresses-entitled-to-family...
It appears as though the law is starting to recognise multiple spouses. Some people in society appear to be heading in the right direction although as stated in the article, it is mostly intended for couples who have separated but not divorced. But it's a move in the right direction.
Ciao
Shadow
