Keeping an iPhone safe from scuffs and scratches, day in and day out, can be tricky, and a lot of protective cases add too much extra bulk to make them practical. One solution is to make a thinner case, and iSkin has done exactly that with the iSkin Slims. MacNN has teamed up with iSkin to give away twelve of the world's thinnest and lightest iPhone 5 case ever made to our readers.