In my opinion, they would do better if they ported all good satellaview games for the DSi, considering that no one outside japan ever had legal means of playing them, and, even outside, with emulators, most of them may get buggy and glitchy
That picture was taken probably using the DSi(of course) and a thing called R4i, wich is a flashcart.
Then, they probably uploaded on it the Lameboy(a DS/i flashcart) and dragged an LA DX rom.
But yes, Nintendo should released the "gold" retro Nintendo games on it, mainly because the...