Ross Dawson pointed out to me the other day that Google have just released live traffic maps for mobile phones in the US. The system allows mobile phone users to chose a destination within Google Maps and select "show traffic". Road conditions are highlighted in three colors: red for congested, yellow or orange for slowdowns, and green for a clear run.
It's a great idea - one many news sites would love to be have been the first to do effectively ... But then along comes Google.
The problem for Australia, though, is not just the reporting mechanisms needed to do this, but the cost of mobile data transfer. You might love the idea of getting the fastest route out of a peak hour jam, but if you live in Sydney your mobile phone bill would be through the roof very quickly.