Here at Brussels-located Hypernovae we are used to work with many languages : european institutions and interest groups flying by are daily using three and often more languages. So we had many opportunities to design multilingual websites, and HyperLang quickly became essential in the development process. With HyperLang links are automatically established between documents of different languages : it does help when you have 250+ documents in 12 languages, which generates at least 33000+ links !
No need for big numbers though, HyperLang will ease your site creation process even if you have two languages.
HyperLang has not been publicly released yet but you can of course request a copy from us.
HyperLang was developed by Hypernovae, the MODx Expert Company.