It's normal for us too in Australia!
Well you are upside down anyways so your "normal" is what it is ;P
[great place BTW, my wife has been there once three weeks when their choir toured there and she couldn't stop praising the ppl, weather and everything... she went rafting and ate kangaroo's too]
Having an option for traffic direction would be great, usually people are so stuck of "normal". Of course if you're doing specific locale then the option be not so good, but for general driving around without saying where it would rock.