San Francisco Apple aficionados waiting for the next flagship device might be in for a treat as the technology giant is expected to launch a refresh of iPhone 7 models along with iPhone 8 in the coming months. Photos of a couple of iPhone dummy models were leaked online which show Apple devices with a glass backing, meaning the models shown in the pictures could have wireless charging as a feature, according to a report in The Verge. Reports also suggest that Apple might announce three iPhone models next month. (IANS)