Apple's Smart Cover is a great, versatile screen cover for your iPad 2. It allows you to stand your tablet up, prop it up for typing in landscape and more; it even turns the iPad off automatically when you close it. But it leaves the back of the iPad 2 exposed, and as beautiful as it is, that metal can get all scratched up pretty quickly without some protection.
So, here's a roundup of all Smart Cover-compatible back cases we could find.