If you are doing a skin that you use page animations with i found this looked quite cool.
Make the page either wider or taller than the resolution you are creating the skin for, then the part that isn't visible lets you add images and text that will only be when it slides on.
I added text saying what the screen was like this..
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E
A
R
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When it slide in from the left that was infront of the screen and dissappeared of to the right hand side when it was in the final position. You guys can probably come up with more ideas to use this trick for but it does look quite good. If there is no animation it looks like a normal page as you don't see it.
That's a cool 8) idea. Why didn't I think of that? ???
It should look awesome.