PC Waterproof Shockproof DirtProof Case For iPod Touch 4G Gen4
It fits well, and the screen isn't terribly affected by the cover.  You have to press a little more purposefully, but it's no biggie.<br />Two days after applying the case, it popped open at the sides.  You can press it back together, where it will stay for about two seconds before popping open again.  I'm disappointed, because that means it's no longer waterproof.  Still an alright case, though.