Just an update on this thread - I read an article on ABA about this today breastfeeding-co-sleeping-and-sudden-unexpected-deaths-infancy - and it says that

"SIDS and Kids Australia will be adding a sixth message to the safe sleeping campaign to be launched in 2012: Breastfeed baby if you can."

So perhaps it just took a while for it to be agreed on how to get this message out there.