http://www.airforce.gov.au/psa/docs/schedule2011.pdf
That's the 2011 schedule.
Going off that, they
shouldn't release offers until, at minimum, mid November for DEO but generally it'll take a little longer.
If you want Army bad enough, go GSO. Do your 18 months at funtroon and be possibly one of the most operational pilots in Australia.
If you're interested in holding hands, singing songs around a camp fire, enjoying a quiet cuppa' in the mess, crafting cute and fluffy bears for your friends, wearing blue and being in the top service, have a shot at OTS.