I'm really excited for the PSP2/NGP as well, but lets not kid ourselves here. Not much at all has been announced for it except Uncharted, LBP, Killzone, and vague untitled projects. The 3DS actually has a really impressive list of games in development (in development, not launch titles), and has more 3rd party support than I've seen in a Nintendo system in a while. Go look at the list of games in development if you don't believe me (and yes, a large portion of the games were announced back when the 3DS was, so its not even related to the fact the NGP was just announced).
This was a problem with the first PSP, and Sony really needs to get developers aboard as soon as possible. The NGP is a *Can'tSayThisOnTV*ing beast, and it'd be a shame if it doesn't live out its true potential.