Bought a 6 pack of this on Friday.
Not sure what i am going to do with the other 5....
Then again, it was up against a few other nice commercials at a brewing get together (wicked Elf pale and wit) and a few very nice HBs (a very nice FES, a glorious IPA and a very well made trippel - none of which were mine).
Pepperberry is a native spice that you should be able to find anywhere you buy other native spices - lemon myrtle, bush tomatoes etc.
In Adelaide your best bet is the Central Market.