Charlie carried his Nintendo 3DS in his pocket for the entire hike. Never once asked to use it, never once asked anyone to carry it for him. It counts steps and doles out some kind of award points for that. Plus, the 3DS can be set up to swap profile info with others in the area. At the end of the walk, Charlie had a new Italian "friend" in 3DS-land.
Beyond Rifugio Lavaredo, the trail climbs up over the pass. This pass was once the border between Austria and Italy.