i was just about to start a thread on the same topic, its a strange one thats for sure, could have been hijacked and the emergency beacons disabled but it would have showed up somewhere by now and someone would be claiming the publicity, maybe it blew up at thirty thousand feet as baw said, or maybe it landed on the sea and just sank but there is no distress beacons from life jackets/rafts or any of the four main ones each plane carries!!!!!