In recent weeks, reports have emerged that several smartphone brands are investing towards the development of 200-megapixel camera sensors for their future handsets. According to a seasoned tipster, a major smartphone manufacturer is testing not one, but two 200-megapixel rear cameras for use in its future flagship model. What sets the mystery handset apart is the inclusion of a 100-megapixel front-facing camera, which is believed to be an industry-first step.