Is three better than two? Apparently, we're about to find out again. Samsung is expected to launch its Galaxy Z TriFold in South Korea on Sept. 29 in its third Unpacked event of 2025, according to Korean news sites. At the same time, the company will introduce its Project Moohan mixed-reality headset and AI smart glasses, the reports said. CNN later reported that Samsung is weighing whether to introduce the phone in the US and other markets outside Korea. If Samsung does indeed unleash the Galaxy Z TriFold later this month, it would be the second triple-screen phone. Huawei rolled…