Former Apple CEO John Sculley’s new venture unveiled its latest products Wednesday night — two sleek smartphones priced hundreds of dollars less than the iPhones made by his old company. Sculley insists that Obi Worldphone is not trying to undercut Apple and is instead chasing customers in emerging markets in Asia, Africa and the Middle East that Apple and other smartphone giants don’t reach. [...] can Obi really compete in a crowded market dominated by consumer electronics powerhouses like Apple and Samsung and aggressive competitors Xiaomi and Huawei of China? While Obi is going after emerging markets outside the U.S.