Million on 10 June 2008
Homebrew and Piracy pretty much answers your question.
Edit : But to explain futher alot of the Wii/DS demographic don't have inteligence/intereste (not saying they are stupid , just not neccaserily able/interested in how to pirate games for the DS/Wii) enough to want to pirate the DS/Wii , Piracy on the XBOX 360 will result in online play being impossible , Piracy on the PS3 is currently impossible. Using anectdotal evidence I know 5-10 people who own PSP's every single one of them pirate regardless of their background , it's just so easy.
