If the rumour is true, Sony will get a significant head start, but it should avoid at all costs to become arrogant or excessively self-confident for this, as similar ratios in North America cannot be just due to bad PR, but they must also mean that MS will be initially supply constrained, so, as soon as production will catch up, MS will set up a huge marketing campaign, most probably bigger than the $500M one it did for Kinect, and surely big enough to strongly reduce the effects of the bad PR XBOne got during the botched announcements and the 180 dance.