From the IGN forums:
Nintendo DS: 561,000
Wii: 381,780
PlayStation Portable: 290,100
PlayStation 2: 270,760
Xbox 360: 198,440
Game Boy Advance: 113,870
PlayStation 3: 98,470
Not sure if these are official or not..
People are difficult to govern because they have too much knowledge.
When there are more laws, there are more criminals.
- Lao Tzu