Quoting what I said in another thread cuz I am too lazy to reword:

"The 2nd unspoken main attraction is how easy it is gonna be for developers to port their iOS/Android games to the NS, from someone who kept an open-mind when it comes to smartphone gaming, I can tell you there are a lot of quality titles to be played, and they'll keep on coming. You don't like the lack of buttons? Enters the NS. Maybe this is me wishfully thinking, but I think it would be smart for Nintendo to attract iOS developers as an alternative to AAA third party publishers who will not be interested in spending even more money port/down-scaling their games to ARM-based console. NS supports UE4 & Unity? So do most smartphones. "

And this:

“Physical controllers for smart device applications are available in the market and it is possible that we may also develop something new by ourselves,” Takahashi said. “I believe Nintendo’s way of thinking is to look at whether action games are really not impossible (without a physical controller for smart device applications) to create and how we can make it happen to create such a game.”

Now Discuss

That would be interesting even though we already have controllers for us

Well, the 3rd party list does have mobile developers on it... could mean something?

Yes, smartphones accessories include gaming controllers, but that segment of the market is a mess. I expected Apple to take a shot at fixing it because they only have 2 sizes to worry about but nada.

Nintendo can unite developers behind their controllers because their games will be playable on the NS too + They don't have to target a certain smartphone size because their controllers are incredibly versatile as you can see in NS reveal video.