Paul,
Firstly let me say that I am really impressed with what you guys are doing.
What I am interested in is your PCB supplier, I live about 3 miles from the address you have for them and it worried me a little. I checked with google street view and the address seems to be a house. I have been involved in electronics on and off for about 30 years and had not come across Futurlec as a PCB supplier. They are not listed in our local phone directory, number should be more like +61 2 49 61 xxxx
We often use Entech in South Australia ,
Entech Electronics and they always produced good quality in good time.
Hopefully my concerns are unfounded, I would be keeping a close eye on this though.
Good luck. Keep up the exceptionally good work.