On my trip from Holland to Nepal end 2008 I did use a Samsung mobile telephone with GPS and the small Vito Smartmap GPS software. It did work fine, but now I think that the Garmin is mutch better for a trip like this.
I am interested in the advice from other people so I am going to follow this thread.
Enjoy the beautifull trip and if you like to see some movies or read our story about this trip: Going East - Home
Movies from our motortravels around the world: www.LifeIsJoy.nl