DS:PSP about to hit 2:1 globally...

[VonShigsy]

FishyJoe said:
But if Sony hadn't provided the pressure, Nintendo may have kept the GBA going longer. And instead of making the DS, they might have just made a GBA+ or something like the PSP.

That's not nessesary the case here. The Virtual Boy was released in 95, while the GB was dominant and the other handhelds were all but obsolete. So innovation only might have pushed the release of DS.