Eurogamer: Nintendo NX is a portable console with detachable controllers (It also connects to your TV, and runs cartridges)

[celador]

So you could, for instance, be playing on the NX handheld, say on Pokemon, turn that off, attach the other part of the controller, and start playing Breath of the Wild on the main console?

Because that would be awesome, even if the power of the home console part isn't too appealing.