I'm a dual screen user, but I'm not going to add to the multiple screen support request as I only need to use Windows on one screen, with OS X on the other. What I'd like to suggest though is that if I drag a window such as my Messenger window off the full screen XP desktop to the Mac desktop, it would be rather funky if it would switch to coherance mode and leave it on the Mac screen (so I'd have my full screen Windows + full screen OS X + Coherance windowed Messenger on the Mac side).
