I think that Nintendo's 'innovations' are really just novelties, but I guess only time can tell whether or not I am right.
While we're waiting... well, what is the whole thing about 'going from 2-D to 3-D with excellent graphics'? We all know that PSP has better graphics, so to argue about it seems kinda useless. If you were using it as a stand-alone point for the DS, I could see your point, but because you are also attacking the PSP in your post, it seems like you're trying to prove that it's better in this aspect, which it isn't. (correct me if you weren't attacking the PSP on this issue)
And I don't see the 'The DS offers the type of gameplay as the X-Box, PS2, GCN, and ultimately the PSP' part either. PSP offers all of the types of gameplay as those products too. The DS's strength doesn't lie within it's compatibility with the old, but rather it's new features, which may or may not be accepted in the gaming community. Some of it's attributes have potential, but only time can tell if they live up to all of the hype. We have so little to base it on with it's starting line-up of games.
I don't think we can assume anything right now. Until more titles are released and experienced, we can only consider everything that we 'know' about them speculation.(aside from the machine's specs)