Red Ocean: It's funny how MS went from a 25m xbox marketshare to a 69m 360 marketshare

[DirtyP2002]

"but the sales of Kinect are known: a total of 15m units sold worlwide. "

Yeah, that is one if the VGC-things nobody gets.
http://www.computerandvideogames.com/349716/xbox-360-sales-hit-67-million-kinect-on-19-million/

In May MS reported they shipped 19 million Kinect sensors. According to VGC it is still at 16.9 million in October.