Airsupport, not entirely despite some posters' perception.
As for Jq entering this run, one of the benefits for staff travellers is getting more seat access to and fro Mel and vice versa which hasn't been an easy task at times with QF over the years.
Below is info from a news source mid December:
BUDGET airline Jetstar is opening another front in the battle against Virgin Blue and Tiger Airways with a new Brisbane to Melbourne service.
Passengers will be able to fly in to both Tullamarine and Avalon for the first time from July 1 next year, for far less than the cost of a Virgin Blue or Tiger fare. Jetstar begins selling the Brisbane-Melbourne flights from today, offering a one-way launch fare of $49 and $89 one-way for a regular ticket. The best deal Virgin had advertised yesterday was $149 one-way while Tiger charged $148.
Jetstar chief Bruce Buchanan said the plan was for two Brisbane-Melbourne and two Brisbane-Avalon flights a day.
As for flight info;
Jetstar’s new double daily Melbourne-Brisbane schedule (from 1 July 2010 – 3 October 2010)
Departure and Arrival times shown
Melbourne-Brisbane Brisbane-Melbourne
JQ560 0650 – 0900 JQ561 0930 – 1200
JQ566 1610 – 1820 JQ567 1850 – 2120