corporate separation won't necessarily mean that Windows or Office or Xbox is dead, or that market domination is over. Separating them corporately won't necessarily hurt Office or Windows. And I think that having somebody take control of the Xbox could be good for it. Riding their security issues and the Xbox Live module is keeping them for developing as many killer games as the other consoles. Getting a few more righteous games could make xbox profitable after only a couple months. Halo can't carry the whole platform.