Iwata: We are prioritizing satisfying customers who purchased the Wii U

[Miyamotoo]

Troll_Whisperer said:
The fact that he says they want to satisfy Wii U owners before NX makes it likely it's a home console, or at least the rumoured handheld / home console hybrid (since he also mentions 3DS).

Well 3DS is year and half longer on market than Wii U, so 3DS have longer suport.