I realize this is probably not an issue for those who are not crazy like we are here and have just a few tables/business objects in their application, but, it's really a pain that the mapping results screen is setup as on top and comes up on top of everything else on the system.  It's not an issue if I just build one partial, but when I rebuild all (happens more than I would like due to structure changes etc) it can of course take a while, and while this is running my primary monitor is close to useless.  I know I could put VS over on the secondary and the mapper would follow, but I prefer to have VS on the primary and other stuff on my secondary monitor.