Nintendo Switch vs. Wii U vs. New Nintendo 3DS XL, How do the specs stack up?

Hello! Is it possible to get Wii U to display DS games as full screen (top DS screen is TV, bottom screen is gamepad)? Currently is just shows up as a DS

Two Nintendo DS classics have arrived on Wii U - Polygon

N64 And Nintendo DS Games Available On Wii U From Today

Nintendo 64 and DS games coming to Wii U Virtual Console

Nintendo 64 and DS games hit Wii U, plus new games and Amiibo announced

Just finished customizing my Wii U NDS setup! : r/nds

The Wii U and Nintendo 3DS eShop will be shutdown next year

If there is only 1 Virtual Console game I'd highly recommend getting before the Wii U eShop shuts down forever, it would be Super Mario 64 DS! I think it's safe to

Wii U: console ganha jogos do Nintendo 64 e Nintendo DS no Virtual

Nintendo 3DS and Wii U online play will be switched off in April