Just wanted to address some false information that is being spread out there, especially with what has been in my experience, a common theme with employees at the Apple Store:

The iPhone 5 cannot access simultaneous voice and data coverage using Verizon's LTE network NOT because the carrier doesn't allow it, but because the iPhone 5 lacks the internal hardware needed to support this capability.

There are many other phones sold for Verizon that contain the hardware needed to allow this functionality.

Although this is old news for most of us in the forums, hopefully it will be useful to a few.