Through December 2010, Sony had either shipped 150.2m or 149.7m PS2s, depending on whether you believe September 2009 Sony or March 2009 Sony citing its own figures. In March 2009, Sony said it had shipped 136.3m PS2s through December 2008. During January to June 2009, or Q4 of FY 2008 and Q1 of FY 2009 on this page, remembering that Sony years end in March, Sony says it shipped 3m PS2s.* Normally, that would indicate 139.3m PS2s in that frame. However, in September 2009, Sony said it had shipped 138.8m PS2s, 500,000 less. The reality is Sony included one extra week in the first press release when describing the quarter, and one week less in the same quarter in its later data. In addition, some massaging of the numbers happened too, given shipments of well under 500,000 per week throughout the quarter (a 500k/ avg would be a 6.5m quarter - higher than X360 / PS3 in in their Christmas quarters), and likely no more than 300,000 in the final week of the year, after Christmas .
* Dec 2008 Figures: 136.3m + 1.4m + 1.6m + 1.9m + 2.1m+ 1.7m + 1.6m + 1.5m + 2.1m = 150.2m as of Dec 2010
In any case, whether Sony has shipped 149.7m or 150.2m PS2s through December 2010, Sony has assuredly topped 150m PS2s through January 2011. This makes PS2 the first system to top 150m units of hardware worldwide. DS will be there by the end of 2011, but for now, Sony's dominant system of the 2000-2006 is still rather easily the biggest system of all time. With PS1 at only 102.5m units and Wii just at 85m, no home console should touch PS2 figures for years. Moreover, as Sony is still shipping 1-2m units per quarter in developing markets, the system has not only topped 150m, but can still top 160m units if the modest declines from the current 6-7m level can continue for at least another half year. In fact if PS2 is at 153m or more by the end of June 2011, 160m is going to be passed rather easily.
All in all, congratulations are in order! Well done Sony...just clarify those figures.
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