Does anyone know if the Incase Snap case that you can get free from the case program will fit over a protective skin? (i.e. Zagg, Phantomskinz, Wrapsol, etc.) I like both the clear and smoke, and it looks someone similar to something like the feather case, but I don't want to order it and have it not work... and I would like to know of the quality of the case, in both colors. I like the idea of clear, but I don't want something that is going to show a lot of scratches. Any ideas? Thanks!