A new round of photos unearthed by NowhereElse on Chinese search engine Weibo purport to show three new iPhone models, an iPhone 7, iPhone 7 Plus and the rumored iPhone 7 Pro. When viewed from the screen side, the devices labeled Plus and Pro are virtually identical in size and shape. But in images of the back, the iPhone 7 and iPhone 7 Plus both feature a single camera lens, where the iPhone Pro features a dual-lens camera and what appears to be…