Originally posted by Entropy Recording camera heading is somewhat useful, but I wouldn't find it of enough use to warrant the price premium.
Actually camera heading may make the difference in GPS coordinates being useful or not. After all, the coordinates only tell you where the camera was at the time of the photograph, not where the subject of your picture was. The heading helps determine that. Shooting a landscape in the mountains for instance, the heading will help me identify which mountain's on the picture. When photographing birds in a Nature Reserve with lots of lakes and ponds, the heading will enable me to identify which body of water the bird was on, etc...
For those applications where GPS coordinates are important, heading is just as important. If it's only to tag your holiday images to a town or so, obviously heading is trivial...
I must say I like this a lot. It seems one of the first similar units that may have sufficient features to convince me to try it. The only thing that makes me hestitate is the rather limited battery life, which requires carrying a lot of spare batteries when in the wild for an extended period.
Wim