Public bug reported:
Please sync viking 0.9.9-3 (universe) from Debian testing (main)
Changelog entries since current lucid version 0.9.9-2:
viking (0.9.9-3) unstable; urgency=low
* [90eee421] Remove the sf.net list, set myself as Maintainer.
* [420be49e] Remove Ralf Meyer from Uploaders.
As you can see in the changelog, viking 0.9.9-3 now depends on libgps >=
2.90, which is not available in lucid yet. Because that library has
ubuntu specific changes, someone (you?) needs to look into the
differences and see if it needs merging or can be imported. See
https://wiki.ubuntu.com/UbuntuD