Well that is intersting, isn't it?
Honestly though I would be more excited if the announcement involved Silicon Knights or Sega.
Seriouslly, Nintendo and Sega going in together on the next console would just . . . Oh lord, words can not express!! Of course I am not expecting anything of the sort. But oh, one can dream! It would be SO perfect!
Two former rivals join forces, having been faced by new, giant, corporate foes! It seems kinda plausible. . . But I think that as companies the two of them (Nintendo especially) are too proud. . . but hey, if ever it was time for a crazy development. . .