Here's the first 'Proof of Concept' application if you want to see the traffic data on the move.
Download from http://www.stevieg.org/traffic/traffic.zip
The application currently runs independantly, and works well as an external app in MediaCar. It requires a GPS signal to centre the map on your current location so you can see the traffic nearby.
If you want to run it at the same time as other apps, you will need a COM port splitter - see Virtual COM Port Splitter
You'll also need a GPRS or other internet connection to try it on the move; however if you want to test at home look for a GPS simulator (theres one in the above thread)
It runs using MapPoint Control, so if you have VOICES working you should be fine.
You will need to change the INI file to reflect your settings such as username on the StevieG.org traffic site
It's of most interest to UK users at the moment as that has the working data feeds so it could actually be used now by us Brits.
Note that thanks go to Jamez_Warner for so kindly borrowing me some source code to a basic GPS app so I could get the GPS part of this working
Here is a screen shot, have fun.