John, You do realize that the iPhone 5s fingerprint reader is sub dermal right? It is actually a capacitance reader. The outer layer where your finger print is non-conductive, the sub-dermal layer is actually conductive. So the iPhone's biometric sensor is actually reading the differences in conductivity to create the print. You won't be able to bypass it with just a lifted print like the Myth Buster guy's did.
Also, keep in mind that the outer ring is used to let the sensor know to activate. It may also be emitting a small current to make the capacitance clearer to read. This would also explain why it works even when your finger is placed on the button in a different position. This is something that a traditional finger print reader would have a hard time with. So unless you can imitate how you fingers pass current you are going to be out of luck.
At some point you guys should just give them a little credit. The way they have engineered this thing is pretty solid. The hackers are probably just going to focus on the data transmission rather then trying to fake out the reader itself.
Also keep in mind that the dust and lift approach to bypass Biometric security is pretty old school. There have been allot of advancements since then.