Yes. I did manage to find the non-cordial version in little metal packets in a Packnsave in the booneys near Gold Coast yesterday on my cycling adventures. But no cordial. For hiking, I can live with the smaller bottle version (I dilute it 1:1 with water for hiking anyway) but it's more expensive and inconvenient than the large cordial bottles as posted above.
I will be going to the UK later this week - hope I can find some bottles there. We also found a similar substance in Marks and Spencer, but its not quite the same.