It's got all this new stuff but underneath it all it's a GBA with better specs.
How is this different from the Wii? It's still a GameCube with better specs right? And you can't even use the comparison to 360 and PS3 because the DS itself had competition with the PSP and it was leagues ahead of the DS in terms of graphical power.
Third party support serves customers and gamers better than anything else.
I can give several examples as to why this can be untrue. When a bunch of third parties didn't care about quality they flooded the market with cheap crap and caused that big video game crash in the early 80's. Third parties pledged higher support for the PSP initially, but because the PSP had so many hardware design flaws (chief amongst them being a low battery due in part to a disc-based medium) their support meant little. Hell, it was one of the big "pros" for the PSP, the assumption of it having higher third party support than some weird gimmicky touchscreen system that uses carts. And if we can't learn any lessons from the highest selling video game system ever, well...
Maxi, it became about third party support the moment I suggested Nintendo uses some kind of cartridge or card-based system for the Wii2 to cut down moving parts, load times, and power use, banking on the idea that 8 and 16 GB cards will be cheap enough in bulk to house the majority of any game types and that game sizes won't ever need to go above 16GB. It was basically inevitable from then.