In the last couple of days, I have created a dual boot machine with both Win7 Ultimate and Win8 RP on the same machine but on different hard drives. It is blindingly obvious that Win8 handles multiple installations at the same time MUCH better than Win7.
Win8 frees up the mouse, parcels time to each of the the installs, and generally installs stuff simultaneously very well. Windows can be moved around easily.
Win7 will put all of the emphasis on one particular install and let the other installs languish until the 1st install is done. The mouse is jerky and trying to move the windows around is frustrating as hell.
Now I am not sure if this would be considered multitasking but whatever it is, Win8 RP definitely wins. Does MS have an explanation for this or touts this in their blurbs?