In regards to Parallels Desktop for Mac: This may be an obscure feature request, but here is the idea. When I'm using OS X exclusivly with my Mighty Mouse, I use my middle mouse button for Expose, and the side mouse button for exposing the dashboard. Of course when I'm in coherence mode and go to do expose while my mouse is within the focus of the guest application, I get the windows mouse click responce (which makes sense). Thus I guess my request is that there be an option to have secondary mouse buttons actually pass to the host OS X when in coherence or windowed mode.