Polyglot for Mac

From Stick Software:

Polyglot is a command-line tool that helps with the development of Cocoa applications that have multiple localizations. Keeping localizations in synch is always a pain -- making sure everything has been localized properly, no files have been overlooked, etc. Polyglot can help. Localizations can take up a lot of disk, too, and with its ability to optimize your localization files, polyglot can help with that, too. Add it to your build so it checks and optimizes automatically each time you build!