OtterBox has announced three iPhone 4 cases, at the same time as WaterField has released new Apple Wireless Keyboard cases. The OtterBox Defender is a multi-layer ruggedized case, with a polycarbonate shell made of shatter-resistant material, and a clear screen cover built in. A swiveling belt clip is included, and a silicone skin wraps around and locks into the shell. In light of Apple's recent iPhone 4 reception issues, OtterBox is marketing the Defender as NAC tested for preventing signal problems.
