Okay, so the game managed to get a localized name, so here's something more on the game straight from France. Ubisoft has recently presented Rayman Raving Rabbids at a Nintedo Wii press conference that was organized in Paris. At the event, people were allowed to test a working version of Rayman.

Ubisoft also took the time to use the event to announce that they're in a partnership with UNICEF. Just so that we don't misquote anything, here is the pertinent Google Translate bit followed by what the French it came from.

Ubisoft also announced a partnership with the UNICEF, Rayman against the Rabbits Cretins thus officially became the messenger of the rights of the children for the UNICEF. ... Ubisoft a également annoncé un partenariat avec l'UNICEF, Rayman contre les Lapins Crétins est donc officiellement devenu le messager des droits des enfants pour l'UNICEF.