after upgrading to latest Plone 4.3.x and p.a.multilingual 2.0.x the language root folders behave strange. I cannot sort some of the items and if I rename items inside, they get a "-de" appended (multiple times after each rename action) ... also the ZMI shows various "portal_xxx" tools inside the LRF.
Plone.app.multilingual 2.0 has an aproach for shared content that is quite different from the rest of multilingual, it just pushes all the content from the root to the LRF. On 3.0, and after some discussion, the behavior has been moved to have only one folder that is shared inside the LRF in order to not have a hacky implementation.
We have some sites using pam 2.0 because but without the sorting and -de problem. Can you create an issue on github with more detail ?