I have accurate PSP and PS2 ltd hw figures for shipments, not production shipments in my front page article. I use shipments from Sony that are less than what you get from adding the production shipments to shipments in the same period of time...Sony lists these figures in its press releases. The last update was in 2009, using June 2009 figures in this press release which clearly doesn't combine shipments and production shipments http://www.scei.co.jp/corporate/release/pdf/090819b_e.pdf
People are difficult to govern because they have too much knowledge.
When there are more laws, there are more criminals.
- Lao Tzu