Correct me if Im wrong but dont a fair consoles have slow starts due limited software offerings. Its only after a year or two when developers get to grips with the platform, the install base becomes larger leading to the release of more high profile titles (ie Halo 3 on the Xbox 360 in 2007, 2 years after the console launched), and the software library grows that sales look more acceptable. The DS had a pretty slow start itself, look where it is now