I was playing with CS4 at the Apple Store the other day and noticed the multiple pasteboards feature. Can someone give me a brief overview of the point of it? In my work I design new logos on an almost-weekly basis, then use them intensively for several months. If I was using CS4, could I have the 4C, 3C and grayscale versions all in the same file and, for example, only place the one I need in ID when the time comes to use one in an ad? If not, what do you use the feature for?