There is a reason for no one achieving this.
The reason is simple yet tricky to grasp.
No one knows where to go with it, nor which problem are they trying to solve.
I (in my infinite modesty) have been blessed with the means to know what's required to do this successfully but no one will implement it because it is what is good for the users and not the bottom line of <insert company name here>.
It is easier to explain it than it is for people to grasp it's significance.
All that it requires is to integrate a remote desktop type of functionality into the phone.
You connect your phone with the usb cable to the pc and magically a window appears with your mobile screen, you double click on it and make it full screen, and use any app in your phone fullscreen with a mouse and a keyboard.
You can copy and paste, drag and drop between your mobile and the computer when the window is not full screen.
Done, that is the only stuff required, who has it done it? nobody, who will do it? nobody.
Why? because few understand why that functionality is important. Bear in mid Microsoft does, they will not allow this, and Google does too, they know MS won't allow it.