I guess some will eventually work on some documentation in future, this also needs a lot of testing first...
I have tested that scenario allready.... lets say you have a site with 2 languages and 3 pages with HTML modules (wish you want to localize) and than a Events Module and a Forum module what would one do? I mean the forum could be language specific, that's ok.... but what about the events?
this brings up an interesting discussion, but in my opinion I think that it is the module that must adapt, for example I've run some tests with Events and Ventrian News Articles.... I didn't figure how to make the Events module work yet...
But for example in the News Articles module its easy... because what happens is that 2 new modules would be created if you have content localization enable but I was able to change this in the DB and point them to the same moduleID that existed before, ofc some modules are more complex and would require a lot of change, I've tried Active Forums... and... well its really to much stuff to change :P
The Events module just breaks up if you have two pages... I didn't figure out yet why, but I'll just keep on testing and testing :)