Multiple artboards in CS4

Amazing feature now in CS4 version. You are allow to create multiple artboards in a single file instead of each file only can contain one artboard in the earlier versions. Maximum of 100 artboards with varying sizes, moveable and display them with your own preference (overlapping, side by side, or stacked) that foresee will be getting easier for designers to organise their projects to work on. Of course no doubt you certainly can "Save, export, and print artboards independently or together, Save a selected range or all artboards as a multipage PDF file".