Well, at the moment, Julia Gillard is still PM - but tomorrow, Kevin Rudd will be commissioned (provided he can give the Governor General the assurances she needs that he has the confidence of the House). Opinion polls would suggest that unless something very unexpected happens, Tony Abbott will become Prime Minister after the next election which could be about six weeks from now at the earliest, five months from now at the latest.
What I've been reading in the Sydney Morning Herald (yes,I know...multiple sources are better) Gilliard would have been trounced in the election but Rudd would win.I don't know if the SMH is a Labour paper or not but that seems to be a pretty stark difference.