China only just released a new maglev capable of 600kph, that's Melbourne-Sydney in around 2 hours, which considering it would be walk on/off each end like a commuter train would kill aviation on the route. I really don't know why the tech is super expensive as it can be prefabbed concrete lanes and just placed on basic concrete stumps across the countryside. Of course Australia would make it stop every 10 km at country stations to deliver milk, haul coal or the odd passenger making it never exceed 100kph. Meanwhile the backwards Nationals are still thinking 'high speed rail' is the answer....