I have to admit if this was real:

Nintendo would have no problem selling 50-150 million of them at $60 a pop just for the controller, and then probably a ton of games at $4-$5 a pop. 

I think it would quickly become the no.1 individual selling smartphone accessorie. 

No.

I think tech in the past has shown this just isnt a good idea.
Case in point - Nokia N-gage

I couldn't think of a worst of idea. They are struggling to compete in a market of three and now they are going to take on a multitude of established phone manufacturers with a billion downloadable apps with... Mario. What??

My phone is more powerful than the wii u. OK, that's an exaggeration but it does have 2GB RAM and a Quad core processor. Knowing the way they love to shovel low spec hardware I wouldn't be surprise if the Nphone came with 128MB RAM and an ARM processor like the 3DS, with no multimedia capabilities.

Hell, Nintendo can't even get a proper video chat going let alone a phone call.

Seriously, from phones people need far more than games. They need the everyday functions that millions of iPhone and Android apps provide.

does everything have to be a phone theseadays?

that thing exists, costs around 20-30 dollars and is nowhere near as succesful as you'd like it to be :P

Is it made by Nintendo? Does it play Nintendo games? No and no? Well yeah, thanks then. 

The bottom line with a Nintendo phone is this -- are they making the OS themselves? If so, forget it. It will never fly, no one but Nintendo fanatics would consider buying such a device and that makes such a device pointless.

A smartphone is the center of a lot of people's day to day lives, it's not a joke or a toy, it needs to function to suit people's lifestyles, the "please understand" nonsense that Nintendo gets away with in the game business would not fly in the cell phone market. 

Honestly I dont think Nintendo could make their own phone, they could make something a long
the lines of a tablet for sure, but a phone is a whole other monster, especially with that market being owned by much bigger companies. If they did though, it'd be smart for them to partner up with one of the big market leaders, still unlikely

I'm talking legal support/marketing/manufacturing from Nintendo. There obviously are about a dozen iPhone controllers, if Nintendo themselves stepped into that market, they would do well.