Hasn't Ubuntu, Microsoft and other, third parties, been promising this to us for years?

Hasn't Ubuntu, Microsoft and other, third parties, been promising this to us for years? Maybe not in a laptop format, but using your Android and connecting a monitor and keyboard/mouse for a PC-like experience?

With the cost of high end smartphones these days this is a welcome feature many people need.
https://www.kickstarter.com/projects/andromium/the-superbook-turn-your-smartphone-into-a-laptop-f