Xiaomi is going to make the Mi CC9 and Mi CC9e official at an event in China tomorrow, on July 2. Ahead of that, the company's official Weibo account has decided to ramp up the fans' excitement by posting the first official image of the two phones, showing both of their backs. Here it is for your viewing pleasure: As you can see, there's a subtle pattern on the Mi CC9e's back, in this white-ish color version, whereas the Mi CC9 in blue has light waves dancing on it. These effects will probably vary according to how light hits the rear of each device, but they're still interesting, as...