Imagine if you could open different applications in different languages. Normally this requires reinstalling OS X in another language but not so with Language Switcher.
Language Switcher allows you to choose different languages for different applications. So for example, if you want Adium to open in French, and Address Book to open in German, no problem. If a program is available in multiple languages, chances are that Language Switcher can change the language of it.
Language Switcher uses a Dock-style interface that allows you to scroll through applications, see exactly how many languages each is available in, and select the language from the drop-down menu. That's all there is to the interface except for a search box that allows you to search through applications. The only problem is that you have to launch the applications from the Language Switcher interface to see them in the language of your choice - you can't launch them directly from the Dock.
The practical use of Language Switcher is questionable because having applications in different languages isn't really useful. However, if you are studying a language or prefer using an application in a certain language, Language Switcher is an excellent solution.
