I was looking at the recorded last flight of MH370 on flightradar24.com and the details that appear on the left when you click on the plane icon were quite interesting. In the last minute or so before the transponder quit it showed MH370 flying on heading 25deg, 35000 ft altitude and a position of 6.80N 103.52E. The info then updated to a heading of 40deg, 0ft altitude and a position of 6.93N 103.59E. The next update a few seconds later left the heading on 40deg and the altitude on 0ft but updated the position 6.97N 103.63E. Obviously something was happening before the transponder was turned off/lost power. If the positions are plotted on Bing maps it shows a definite turn to starboard. I have no technical knowledge of aircraft systems but someone who has might be able to explain a scenario that takes all this into account...