Someone posted some NX info which im 99% sure is fake, considering the NX is a concept as of now:
"So, from the sources that gave me this, this is what the NX may look like. It, like the Wii U has a Gamepad-like controller, but it's much smaller in order for travel play. The console's final name is apparently the "Nintendo Nano X", & the controller mentioned earlier is called the "Nanopad". The console will have backwards compatibility with Wii U games, & will have a few launch games that ether have a not yet finalized name, or have a generalized name. The launch games from Nintendo are:
.The Legend of Zelda NX
.Super Mario Galaxy NX
.Fire Emblem : DeathWind
.Animal Crossing : Countryside
.Metroid Prime 4 : Mutation
.F-Zero NX
.Punch Out!! Flaming Fist
.Xenoblade Chronicles Zero
.Paper Mario NX
As far as 3rd Party games at launch we have:
.Mega Man X HD collection (CAPCOM)
.Sonic Nove (SEGA)
.Final Fantasy : Shadows (Square-Enix)
.PAC-MAN vs PAC-MAN (Bandai Namco)
.Jet Set Radio : Sky Break (SEGA)
.Street Fighter NX (CAPCOM)
I have also been informed that it will support amiibos, as the Nano Controller has a built in NFC reader.
As for smartphone support, currently all I know is that Nintendo will release an app that allows those with say an iPhone or an Android to play a multiplayer game, with the phones working as controllers & game screens. The app will work similarly to the Nintendo 3DS's DS Download Play.
As for how the games work: Each game comes in a cartridge. You place the cartridge into the top part of the controller (the top of the controller in question). Afterwards a menu should pop-up, and two options will appear. One is "Play on TV"
& the other is "Play on Nano Controller". At any points during gameplay it will be possible to switch between the two options. All data will be save to both the console itself, & the controller."
Again, this is all the information I have on the NX. None of this has been confirmed nor second ironed by Nintendo, however seeing as this is from an inside source, it would be hard to disprove."
Via
Retro Traveler on Google+