I think multiple levels of undo would be wonderful, too.
Document preparation systems will also require large screen displays.
Not all smart people work at Sun Microsystems.
The best way to do research is to make a radical assumption and then assume it's true. For me, I use the assumption that object oriented programming is the way to go.
I just don't like to lose what's in the window.
I think the Macintosh proves that everyone can have a bitmapped display.