First, did no one else notice the "motherboard-esq" lines all over the metallic portion of the back plate as seen from the inside? I remember noticing them on some of the original leaked photos and thinking they were lines left over from the machining process, but after seeing them on this video, I'm convinced they're some sort of internal wiring laid inside the plate to accommodate the transmission of power and/or data. Is the back plate a big antenna? Or less likely, touch sensitive?
Secondly, what's with the complete and utter silence from Apple? If this part is legitimate, it's almost as revealing as the stolen iPhone 4 prototype from 2010. While it's not a working phone, it's more than enough to expose virtually every single change to the 6th gen iPhone, including what it's going to look like. While sending out take down requests all but confirms the legitimacy of a leak, it's never stopped them in the past. At very least, you'd expect to hear about Apple going after those who sold, and purchased, this "leaked" back plate, but as days go by and various blogs continue posting increasingly detailed photos and videos, we have yet to read or hear anything from the guys in Cupertino. Very strange.