Traffic Announcement through XML/RSS feed.
Annoucement are feed through internet.It remove reliance on RDS (Radio Data System) giving everyone the ability to create their own XML feed for their area.It could also be used to announce public transport information such as time of arrival and delay for trains and buses.
What we need is more navigation system/apps that support
letscommunicate.co.uk have traffic announcement using XML http://www.letscommunicate.co.uk/connected/services/infomatics.htm .