While everything's cooking, an internal camera allows you to check up on your food and even zoom in for a better look. It's a convenient way to see if your crust is golden brown but not yet burnt without opening your oven door, which might affect the bake.
Unfortunately, Whirlpool's transparent screen doesn't look great. The salmon looked grayish on the screen, and WLabs, the Whirlpool incubator behind the oven, said that because the display is transparent, it couldn't be designed with a higher pixel density or more vibrant colors.
Because it's just a concept, there's no release date or even a rough estimate of availability for the oven. And WLabs says it will likely take a lot of further iterations and feedback from users before it reaches a final version.