As of yesterday, and from svn checkout only, when locating images with the kipi-plugin Geolocator, the altitude information is provided in addition to the lon, lat coordinated.
In the KDE4 0.10 version this works also in the tracklist mode where you can show and geolocate several images at the same time.
This is a companion discussion topic for the original entry at https://www.digikam.org/news/2000-01-01_altitude_information_available_in_kipi_geolocator_plugin_3d_info/