I hope I didn't imply you said it. I said it wasn't revolutionary 
Touch controls like another poster mentioned.  That is how the ds did it and it was fine.  3d is not revolutionary either. It is a feature that can enhance gameplay if done right

The NGP's problem isn't going to beat the 3DS for one main reason. HIstory. Nintendo has the best exclusive libraries of characters ever. For a while i was confused why doesn't nintendo release pokemon on the Wii, or why hasn't there been a a regular Kirby game ((well there is one coming out now, but like 5 years later)) It's because they know that people want to play a unique game on their handhelds. I don't even think if the NGP had a low price point that it would make it sell as much as the 3DS, and once again that's because there is no way they would have the long slew of games that the 3DS will have. There is no way the NGP can compete with what the PSP had to compete with ((5-7 different pokemon games that all sold like hot cakes. Or 5-7 Mario games that did the same thing)) This surely what the NGP is going to have to deal with, and perhaps to a greater extent, seeing as how Nintendo is coming out fast and quick with games that will catch people's eye, and bringing back old character ((Pit from kid icarus.)) I understand that Sony has some Great titles that are in the works, but nonthing, and i mean nothing sells more than the Mario Franchise, or Pokemon... Now Combine them, then add the big hits like Kirby, Donkey Kong, Zelda, and the other slew of new games that Nintendo Can think of ((nintendogs Cats, Brain Age, and what ever else)) Yeah sorry but I don't care how good your games look, or what your machine can do ((don't get me wrong the NGP looks freakin sweet, I plan on picking one up eventually (((probably when i stop being a poor college student))), But i just don't think it can beat the 3DS)) I mean Maybe if Sony can put out Crash bandicoot, Sly cooper, and other classic titles on a regular basis then maybe it will stand a better chance. But Man i just don't see how anyone can compete with Nintendo as long as they are basically bringing rocket launchers to a knife fight. Please feel free to give counterpoints, I would love a discussion. 

You can't go with history for console gens.  When the N64 launched I bet a lot of people thought it would either crush the PS1 or at least go toe to toe with it given Nintendo's history.  But the PS1 crushed it.  And many thought MS, Nintendo, and Sony would be neck and neck last gen, but Sony crushed them then.  And with this gen, everyone thought the PS3 would be on top because of the success of PS1&2.  Now it will finish 2nd at most, with Nintendo on top.  Anything can happen.  And remember, Mario, Zelda, and Pokemon didn't save the N64 and Gamecube.