Again, a screenshot isn't ideal, but you can see how the platforms below have a 3d feel, and appear to have a surface that you're looking down on. Although you can't see it in that shot, looking up at platforms above you lets you see the underside and the green leaves protruding from within rather than just stuck on the bottom. (Tails is actually in the center of the screen, but I've cropped off large amounts of empty blue, which is why the platform he's standing on is flat to the camera).
If I get time I think I'll knock up a simple game with it and see what people's impression is when it's moving. [grin]