BlackBerry showed us prototypes of the BlackBerry Q10 QWERTY keyboard devices during the global launch but those devices had plastic back along with the rendered pictures BlackBerry gave us. With the BlackBerry Z10 launching with a rubberized back its interesting to see that there is another model of the Q1- floating around with such a rubberized back. There is no way to tell if that is a newer or older prototype but either way it looks good.
Also worth noting is they managed to get pictures of the BlackBerry Q10’s larger NS1 2100mAh battery. They also show off the metal bar that slightly protrudes from the back of the device to give it a little angle on the table and make sure it does not get scratched on the back.