I'm looking for a device that can do all of the following:
- Take picture
- Save lat-long GPS position + heading (angle to North) of picture [so need tilt-compensated 3D compass], in exif or other format (save tilt as well if possible)
- Save precision-related GPS (NMEA) fields, as many as possible (at least HDOP, other if possible)
- If possible: display OSM maps (better if I can put my own tiles)
Ideally HDOP and the like should go into both exif of the pictures and gpx track, but post-processing (gpscorrelate or the like) is OK.
I would need to know this ASAP to buy the device and learn how to use it: it's for an 80-day alpine OSM mapping party, starting early June 2012! See here: http://www.outdoormaps.org http://wiki.openstreetmap.org/wiki/ViaAlpina
There are already some data on this long high-distance trail, but they lack accuracy estimates. Heading will make the pictures much more valuable.
(PS: I've seen this question: Logging GPS and Accelerometer Data - Device Suggestion? but I need heading and HDOP)