The LG V40: Three cameras on the back, two on the front. I t's official: LG's upcoming flagship smartphone, the LG V40, has three cameras on the back and two on the front. Though the official announcement of the phone is due Oct. 3, the company revealed some details about the phone — including photos and a video — on its Korean website . Interestingly, although the cameras are featured prominently in all these promo materials, LG hasn't revealed their specs. What we did find out, though, is the size of the phone's screen: It'll be 6.4 inches. The phone will be the same width as its 6-inch predecessor, the LG V30; the company claims it increased the screen size within the same form factor by reducing the size of the bezels. The phone will be available in three colors: gray, red, and blue, and we get a glimpse of all three in the promo video (above). LG says it sandblasted the phone's rear glass to achieve a "silky feel," hence a