Apparently some phones on the Telstra network had issues with this. If the user had set their phone to acquire it's time from the tower it was connected to, then the phone may get and incorrect time.
DST is running a week longer this year and all states are finishin at the same time, next Sunday morning at 0200hrs I believe.
One news site even called it a "...mini Y2K". Pfft!!!
I worked on Y2K and this is nothing like it.
Simon.