Better Graphics..riiiiight. Those would be DSi games, not the entire DS. It's impossible for the graphics to be judged by the system, it only is judged by the graphics put into the game. I.E. Gamecube game graphics aren't as good as current Wii game graphics.
I don't see the point of the DSi, it just has the things you see when you start it up and are at the welcome screen displayed on the DS.
The camera is probably the good part though, the bad thing is you couldn't see the upper screen in-game if it's possible to use it in-game.