Caze has introduced its new Zero 5 UltraThin case for the iPhone 3G and iPhone 3GS. Made from translucent polycarbonate, the Zero 5 offers a maximum thickness of just 0.5mm, open access to all ports and controls, and partial protection for the iPhone’s chrome bezel. In addition, the case includes both mirror and anti-smudge screen protectors and a microfiber cleaning cloth. Available in black (smoke) or clear, Caze’s Zero 5 UltraThin case for the iPhone 3G and iPhone 3GS is available now and sells for $20.