Huntsman,
Can't really speak for whats happening in Strahan at the moment although i do know that there is/was a float operation out of there. As for Hobart/Cambridge, yes ParAvion are most definitely still in operation and are doing all sorts of flying which definitely includes the SouthWest.
If you want to know anymore ie with regards to employment etc could you elaborate on your origional question and/or send me an email and I'll try to help you out.
Twin