All4Cellular offers the OtterBox Defender Case with Holster for iPhone 4 in White for $15.95. Coupon code "A4C6A6" cuts it to $15.15. With $2 for shipping, that's the lowest total price we could find for this case in any color by $3, although we saw it for $2 less five weeks ago (since expired). It features a clear protective membrane for the touchscreen plus openings for the camera lens, dock connector port, and home button.