Hello, I ran update_po_files.sh in trunk to merge new translations into .po files, so there are now new strings to translate.
Among the new strings there are now language names. I'd like to point out existence of a project which collects translations of language names in all languages [1]. It's a normal localization project in form of .po files. If it already contains translations in your language, you should probably use them for consistency (i.e. look up the language name in the ISO 639 .po file and copy it into your inkscape .po file).
You can also check whether your language is maintained there and if not, also translate language names there. It will help other projects which use localized language names. The ISO 639 template is a part of Debian iso-codes package and you can either translate it directly on Alioth if you have svn access or via translationproject.org, which should be easier for translators. If you have any questions or need any help, contact me.
[1] http://translationproject.org/domain/iso_639.html
Regards ~~helix84