We've been hearing about and clamoring for an iPhone that can support two carrier networks at once, and a recent dive into the iOS beta added more water in that rumor mill. There were three new references in iOS 12 that gravitate towards the idea of a dual-SIM iPhone - an Apple first. Tucked in the code strings were the phrases "second SIM status," "second SIM tray status," or "dual sim device," all of which point to one logical conclusion.