Even if they sell 4.5 millions (the 75% reported ) they will still be outdoing Microsoft by a great margin as MS didnt sell 4.5 millions until september . .And if they sell 4.5 millions in 4 months in USA and Japan and 1 week in Europe .....well 7.5 by July ,9 by september,10 for october ,11 for november and some 13.5 for December is a quite a logical progression ...and it would be outdoing X360 by a magnitude of nearly 2 .... Just to put things in perspective .