HTC M8, 2 camera or ....
So there is a leak of the M8 rear and it seems to have 2 camera, or it could be a weird finger print scanner or anything else, it also has 2 flashes so could be similar to the 2 tone flash on the iPhone or just dual LEDs.
Another theory is that it is a finger print scanner, but the location looks very weird being right at the top.
Not sure how you all feel but I would rather just have 1 8mp camera with the same/bigger sensor the the One and better software. Having 2 cameras in that set up looks pretty weird and just doesn't flow with me.