Too bad these estimates for presells are generally inaccurate. If the PS4 was changes to 550,000 and the XBOne was changed to 400,000 it would seem a lot more like M$ had turned a corner. Based on the numbers in this post, it looks like M$ have not really got the momentum going yet. The problem is that we really needed a number from 30 days after E3 to see where the trend is. It could have been(probably was) 3 or 4 to 1 at that time PS4 over XBOne. The next update will be a lot more telling.