I'm using LinguaPlone in a site thas is written in English and Spanish. All site pages and folders can be translated, except the front page folder. I think that I can translate the page that the front page folder uses as view, but in that case when a user goes to front page, only the folder view is showed (not its translation).
I'm using Plone 4.1.4 and LinguaPlone 4.1.2. Maybe I need to try with other tool, as raptus.multilingualplone.
Normally, when setting up a LinguaPlone site you let LinguaPlone create top-level per-language folders that act as navigation roots. The root of the site itself is set up to redirect visitors to one of these roots depending on their language preferences and other factors, using a language selector.
Take a look at http://www.norden.org/ for an example of such a site. Notice that when you visit that URL you are automatically redirected to one of the supported languages, usually to http://www.norden.org/en/ for english. You can switch between the available languages on the top left, and you'll see that the first element of the URL changes between the language codes. Those are the top-level folders.
The advantage here is that each of these folders can have it's own default view. Another is that URLs are always crystal clear for visitors; switch from "About this website" (http://www.norden.org/en/about-this-website) to the Norwegian translation and you end up on on http://www.norden.org/no/om-nettstedet; anyone can see that the new URL is in the Norwegian language even if they do not understand that language.
You can set up these language folders after the fact, as documented in the LinguaPlone installation instructions; simply visit the URL:
http://localhost:8080/Plone/@@language-setup-folders
but be sure to backup your site first and to adjust the address for your local situation.
