Ok imagine this. It sounds farfetched, but I think its believable and within the realms of possibility.
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First person view
A 20 something guy is playing a new 3D Super Mario game on what looks like a Wii U gamepad, but it';s slightly different, analogue triggers, brighter, clearer touchsreen, and slight indentations on all the controls. His alarm goes off for his dentist appointment on his smartphone.
He pauses the game and walks over to the TV and plucks the NX system out of its charging cradle, opens it up and resumes his game where he left off, and continues playing outside on route to the dentist appointment.
Cut to after its darker now on the bus and a low battery symbol warns him he's on low battery. He simply TWISTS OFF the second screen and the game switches to just being played on the bottom screen. The battery life rises roughly 20%
We then cut to show that both the NX gamepad and the controls on teh main portable are modular and can either be swapped for circle pads to full on analogue sticks, you can even pimp them out with SNES N64 and gamecubed themed buttons, alongside faceplates which can bet swapped!
We then cut to Nintendo's logo and the NX's name.
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Would you buy this console. Say if they had a basic that wasn't backward compatible due to its x86 architecture, and a pro one that came with a gamepad, charging dock that allowed on TV play, and backward compatibility? I'd probably also have a preview at the end of all the launch games, especially push the third party support too. Such as people playing the full console version of Battlefield 5 on the subway against each other locally or playing GTA6 on TV and then on the bus. Or something