PC Mag: You've got your Apple iPhone 4. Congratulations! Now you're torn between wanting to show off your "precious" to the world and tucking it safely away from sticky fingers and, well, any harm. The good news is that there are plenty (and we mean plenty) of knights in shining armor ready to avail themselves to you…for a price, of course. In the weeks since Steve Jobs first revealed the iPhone 4, dozens of new iPhone cases have been announced.