So what specifically is responsible for the massive change in operating income, from a ¥83.3 billion loss last year to ¥35.6 billion in income this year? For the singled-out games business, it was thanks to "significant cost reductions of PlayStation 3 hardware and higher unit sales of PS3 software." You can check out the overall sales numbers in that handy slide above.
While operating income was up, overall sales in the Networked Products and Services division were largely flat, dipping 1.2% year over year. Looking at the hardware sales numbers, the PS3 sold 14.3 million units versus 13 million last year; the PSP sold 8 million versus 9.9 million last year; and the aging PS2 still managed to hit 6.4 million units versus 7.3 million last year. Forecasts for 2011 have the PS3 ticking up slightly while the PSP and PS2 continue to flag. Not mentioned here though: NGP, which should certainly help the PlayStation family move that needle.