I’m still waiting for a MacBook/iPad hybrid.

They already made it - called the Apple TV. They should make a $200-$400 mini PC with no fans. You can choose tvOS or macOS, and either way it makes an awesome gaming console with 4 forward usb-c ports. They’ve done alright with mobile gaming and they could really make a dent in the console market if they tried. Aside from that it would be a great home server or even a desktop PC.