Following the (very) recent release of emerillon 0.1.0, I'm pleased to announce that emerillon has a debian package created, and now available in my PPA for Emerillon:
If you use Ubuntu Karmic 9.10, almost all dependencies are already available... Except libethos.
For libethos, you will also need, for now, to add the PPA for audidude (Christian Hergert):
This is until I have the time to rebuild the packages for that library and publish them to my Emerillon PPA.
There's already work started to include it into Debian, but it still requires packages that aren't ready yet. Same idea for Ubuntu. One of the major blockers are libethos, but I will discuss its inclusion with the upstream maintainer (who is audidude, in any case), and hopefully get it included very soon. From then, emerillon should be fairly easy to upload to Debian.
For the curious, Emerillon is a map viewer for GNOME, very nicely designed, which uses OpenStreetMap maps to allow you to search, add placemarks, etc. Think of it as a Google Maps for your computer, but fully open :)
For more information about Emerillon, see the Launchpad project page: https://edge.launchpad.net/emerillon