South Australia enables vehicle registration through EzyReg app.

[1] EzyReg app is a new iPhone application for the Australian government that gives real time vehicle registration and status look ups right from the mobile.
[2] Australian citizens can load up information through a bar-code recognition capability with the use of the phone’s camera.
[3] The technology was initiated with the aim of cutting on government cost, and take advantage of the mobile technology in the 21^st century.

[Source] http://www.futuregov.asia/articles/south-australia-enables-vehicle-registration-via-smartphones