[Moose-dev] Fame vs Magritte

Hi, being a end user, I am bit confused with these 2 frameworks: Fame and Magritte. There are both meta-meta-models. So what make them different from a conceptual point of view ? For my models, I would like to have the persistency for free (from Fame) and the UI edition and model validation for free (from Magritte). Today I must write two times the description of my language (one in Fame and one in Magritte), and it feels like I would need only one description. Any info on this would be appreciated. Thanks. Francois