A UAL B-777 diverting to Midway Island because of supposedly a burning odor in the cabin area, setting off alarms. Flight from HNL to GUM. Apparently delayed in HNL before takeoff for the same problem. Pax had to wait a whole 6 hours at a Midway gymnasium to get picked up by another plane sent from HNL. The news went on to say that it was one of the most remotest part of the world. Midway to HNL is not that far. I understand Hawaii and the whole of the Pacific is quite remote, but Midway isn't far from HNL airport. Those pax could have been stranded in a more remote area far from any near airport.