Nintendo president Satoru Iwata revealed Tuesday at E3 that both the Mario and Zelda development teams are "hard at work" on new titles.

During its E3 keynote presentation, Nintendo revealed that both its Mario and Zelda development teams were "hard at work" on new titles for both franchises.

"They will bring new titles to Wii," said Nintendo president Satoru Iwata.

Iwata stopped short of revealing what those titles might be, or when we could expect them, but rest assured Nintendo's two marquee development houses are working on new IP.

Also revealed Tuesday after the Nintendo press conference was the fact that the DS Zelda team is also working on a new title. Again, aside from that ambiguous revelation, there is little information to go on this morning.