The DS launch was slightly different than the Wii, since the DS' system-seller app was not bundled with the system, and indeed, didn't come out until close to a year after its launch. Before Nintendogs came onto the scene, the DS actually sold pretty poorly; the PSP was almost matching its sales for a while there. Most of the early adopters were the existing Nintendo fanbase. Then Nintendogs came out in mid-to-late 2005 and sealed the DS' and PSP's fates. But that's first-party concerns, really.
To illustrate just how close the competition between DS and PSP was before Nintendogs, you need only look at DS vs. PSP sales for 2005: 11,010,238 vs. 9,229,303 for the year (13,870,391 vs. 9,705,332 lifetime to date). That's about a 55%/45% share for the year, and 60%/40% share lifetime to date for 2005.
Sky Render - Sanity is for the weak.
