2018 UPDATE: The other answer is better!
Far from perfect, but Nautilus can do something like that with an extension:
Cons:
- Thumbnails can not be made bigger than✅ Shows differently pictures that contain GPS latitude/longitude in their EXIF.
- Problem: The presence of GPS information is textual, which is difficult to notice, making my workflow less efficient.
- ❌ Not thumbnail-centric: Only one column, which means a lot of space wasted, and impossible to see many pictures on the screen. The most prominent is the filename (which is irrelevant) rather than the miniature.
- Only Only one column, which means a lot of space wasted, and impossible to see many pictures on the screen. Also, thumbnails can not be made bigger than that.
- ✅ Supports drag-and-drop to modern web browsers
- ❌ Not very fast
- ✅ Open source
Installation: Follow the instructions in sections 1 and 2 at http://bernaerts.dyndns.org/linux/76-gnome/349-gnome-nautilus-exif-iptc-xmp-gps-column-property-extension