A few interesting things about the JATM announcement:
1) If anyone had any doubts that Australia is now America's #1 ally, however much that may mean these days, this is it. No other nation has been offered AIM-260 JATM so far, and with all the weapons and systems that Australia has been buying from the US that no one else has, such as ALQ-249 Next Generation Jammer, AGM-158C LRASM, AGM-88G AARGM-ER, and HACM, it is quite clear that the US is comfortable and satisfied handing their top kit to Australia first if it is ever to be sold to a foreign country.
2) For me, this also makes me quite confident that RAAF will eventually have the option to buy F-47 or F/A-XX. Australia has moved beyond just being a customer, but also a partner in development on systems like HACM and
other guided weapons. That means having both the money and trust that is required to be at that level.
3) The other interesting part of that article is that Australia is getting test articles of AIM-260. The US has recently been keen on working with Australia on aerospace development, and giving test items is another sign of access.
4) Finally, AIM-260 JATM is officially being integrated and introduced on F-22 and F/A-18E/F. Nothing official has ever been said on F-35 integration on US F-35s. So we should expect JATM to work out of the box on F/A-18E/F by the time Australia receives its first batch. The test vehicles suggest, to me, that RAAF might need to do legwork integrating JATM on its own RAAF F-35s. Now that we are post-SDD, commonality across all nation's F-35s is no longer required, so this may be a sign of where the JSF programme is heading.