TomTom RDS-TMC Traffic Receiver US for GPS Go 510, 720, 910, One XL 636926014977 | eBay
TomTom Truck GPS GO Expert, 6 Inch HD Screen, with Custom Truck Routing and POIs, Traffic Congestion Thanks to TomTom Traffic, World Maps, Live Restriction warnings, Quick Updates via WiFi
TomTom MyDrive™ – Apps on Google Play
TomTom's traffic index reveals world's worst commutes | Popular Science