Replicate the screen sliding to the side like the Notification Center in Mountain Lion?
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Basically I want the entire OS X desktop (or ideally everything but the menubar) to slide up and reveal my own view at the bottom part much in the same way as the Notification Center in Mountain Lion works (just from the bottom instead of from the right side).

I've been looking around a bit, but I'm a bit at a loss as to where to start. NSScreen gives me the frame of the main screen, but no way to get any kind of NSWindow for the entire desktop (or anything similar to that). So the desktop itself, the dock, and any windows open would slide up when my view becomes visible.

Help? :)