The component allegedly comes from an unreleased iPhone model and was obtained by iLab Factory. Both Macotakara and iLab Factory suggest that the dual-head vibration design could indicate that the above component is part of the highly anticipated low-cost iPhone, not the upcoming iPhone 5S.
We don’t quite understand, though, why Macotakara believes a dual-head vibration motor is cheaper than the single-head version used in the iPhone 5, as discovered by iFixit.
Eric Slivka of Macrumors highlights that “on this part, all three features appear to be buttons, suggesting that this upcoming iPhone may see the mute switch become a push button.”
Other images published by iLab Factory don’t reveal too much additional information except that those parts contain a longer cable than seen on the corresponding iPhone 5 part. As you can see from the above image, the layout of the front camera flex cable is similar to the corresponding iPhone 5 part.