First of all thanks for your great work. Localizer 2.x is awsome. Testing it for a few days here now on a local test installation and didn't get any bugs so far.

Regarding the displayed content languages i could only find a block so far. Is there also a possibility to have this option in the profile so users can set which languages they would like to have content displayed in? I think this would be a better solution instead of carrying the block throughout all of the site.