Yep - not surprised by that.
I suspect you'll see both British and American boats moving through Perth on a regular basis from now on.
Interesting backgrounder here on the similarities/differences between the two boats.
https://www.aspistrategist.org.au/as...for-australia/ Payload and combat system a significant tick for the Virginia class I would argue.
And that said - noting there'll be no capacity for Britain to build any Australian boats in the near future, this report makes for sobering reading on the US ability to even supply it's own needs:
https://crsreports.congress.gov/product/pdf/RL/RL32418