Can you imagine a gain in efficiency when owners of iDevices do not have to buy water-proof cases or extra water-proof cameras? I would guess these things would require more than a full scale power plant to be produced.
Instead of introducing a completely new standard (which is not going to last anyway), the'd better get rid of all wiring altogether in favor of wireless charging, BT, air-play. A big plus as they would achieve a sealed case.
Exactly my feelings. Actually they could fit even 4.5" into the existing case without having to make it long. I guess they could also fit 5" into the new long case if they used the same dimensions as the center back panel. That would have been a gorgeous device and pretty much a killer of Android as we know it.