IC2 supports shipping language files now, we need your help to translate it to the various languages.
Please create a thread per language and attach the properties file. The file name is using the same country codes as vanilla Minecraft, the file extension is properties instead of lang. Language files have to be encoded using UTF-8. Using Notepad++ and setting it to UTF-8 is recommended if you are on Windows.
I'll add the properties files to the usual IC2 download/distribution, posting in this area implies you giving permissions to do so.