Or whether or not it is an interchangeable lens mount. What sensor? APS-C, full frame, or m4/3? How's the picture compare to the DSLR's currently on the market? Is this gonna be all jello-fied if it uses a CMOS sensor?
Why not install one in the forehead as well? How's he gonna capture audio? Is it possible to install a microphone mount in the side of his head, just above the ear? What codec is he using? I bet if he had an HDMI or HD-SDI output in his neck, he could strap on a NanoFlash to his belt.