The n64 is A more powerful console than the ds though even with the extra power given froam the scds2 it is extremely unlikely that a emulator Will beable to be made, now the ps2 is even more powerful than the n64 soo it's kinda self explanatory
there is about a 50% data throughput loss from CPU to DS2 to Slot1. superfx games will probably never work, and if they do it will be without sound. i highly doubt anyone will have a working psx emu that can do more than attempt to run 1 or 2 games at a low framerate and without sound. ps2 is just dreaming.