Alternative could be for it to rotate to landscape when charging in the car charger (but not via USB charger!).
Hi, I'd like some small utility that will automatically change my screen orientation to landscape whenever I run a specific program. E.g. for TomTom it would be good for the main desktop, not just TomTom, to change to landscape so calls/texts come in the right way round (as I use the device landscape for SatNav).