These are still shipped numbers. non-Japan Asia/Eastern Europe figures could use some tweaking but overall we had already known PSP shipments were 49.6m through Dec and 50m through January.
NPD had PSP sell through at 14.5m through January 2009 in the USA for instance. Sony says 18m shipped in SCEA terrritories. That includes Canada which insures the figure is at least 15.5m and probably closer to 16m through January. Even if Mexico is included I dont think PSP has launched in Latin America, so its difficult to imagine PSP over 16.2m in the Americas which is what we have for it through January.
The same kind of thing is true in the other regions, where 'unit sales' as with Nintendo, Microsoft etc mean what the manufacturer is selling to stores.
People are difficult to govern because they have too much knowledge.
When there are more laws, there are more criminals.
- Lao Tzu
