As others have posted, by installing 3rd party apps like, eg, Virtue Desktops, you can get a cool transition from OSX to XP to amaze your friends. Here's a shot made by a guy called mithras on another forum: (Of course this doesn't bare too close an inspection, at least on a MacBook, until XP can run at LCD native res). But, this is a standard type of transition that seems to be used by several apps (inc. of course OSX for fast user switching) so I *imagine* that it is something that Parallels could put in to the Workstation app directly. Which would be very cool, since then I wouldn't need to have fancy 3rd party apps running just to enable it. Of course there are many more important things to sort out (inc. an alternative mapping for right click on laptops, plz but this would certainly be something cool. The effect on the people looking over my shoulder in the coffee room this morning left me in no doubt of that!