RE:= where on an iPhone
If they position Biometric Scanners under where they want you to hold the phone so that it gets a signal it would be a great way to make the people who buy Apple products hold the phone in such a manner that it works and doesn't leave Apple open to Legal Action.
Realistically however a few years ago any sensible person would have ask why stick a camera in the back of a iPhone and anywhere where could you fit it?
I dare say it will seem straight forward if they where ever to do this.
Col