Suna announced late last month that its GPS traffic information service would be expanding to most of Australia's capital cities by the end of the year, but that turns out to have been something of an under-estimate.
I've just been chatting with Adam Game, CEO of Intelematics Australia, which develops and runs the local Suna service. The full interview will be on Lifehacker later this week, but the big immediate takeaway is that the services for Perth, Adelaide and Canberra should all be live by the end of June, once map updates with the appropriate traffic location tagging have been pushed out. Suna information (which is transmitted using FM radio spectrum) is free provided your GPS device supports it. Melbourne, Sydney, Brisbane and the Gold Coast are already covered.