Tree, I am sorry I was not clear enough in my answer.
I was trying to reply to your comment of "... that original sub-sea pipeline plan from PNG to AU may still be in play. AU LNG plants and domestic gas market could benefit from PNG's cheaper feedstock too. "
The problem with the Australian gas market is that the real gas shortage is within NSW.
A gas pipeline from PNG to the top of Australia is hugely expensive and then we are faced with a bottleneck in the pipelines going through Queensland towards NSW.
The real reason why people in Australia, mainly NSW, are kacking in their pants is because the long term supply contracts for natural gas that were set at such low levels initially are new coming for renegotiation and will become global market value.
Sure it would be great if a new sub-sea/land pipeline was laid all the way from PNG to the NSW market, but I am sure you were not implying that, no matter how cheap the IOC gas happens to be.
Also the gas from the sub-sea pipeline would require take up from the huge Bauxite mine at the top end of Queensland (Weipa) and the aluminium production plant just south of Gladstone (Queensland) to have any chance of having a big enough market. Well, we know what has happened to the Aluminium mining and refining within Australia.
Likewise from the links I posted above, it looks like the LNG projects in Queensland will also have enough gas by themselves with what is happening there now.
I hope I explained myself a bit clearer this time.