It's going on 4 days now since wildbill posted anything.
Being a little worried, I checked his "home" here on the forum and found that he visited us today so appearently he's OK.
Hmm.....
I don't think there's any croc's out there in the middle of Oz so it's unlikely one of them ate his camera.
Maybe he dropped it down one of those holes the signs keep warning people about?