The X Window System (X11 for short) looks and feels the same on my Intel Ubuntu Linux laptop and on my HP 9000 UNIX workstation running HP-UX 11 on PA-RISC.
X11 is ancient (1987), but it's brilliant. Its designers even anticipated having 16 mouse buttons, and (more importantly) opening a window on a remote system.
The system is flexible, programmable, customizable; I've got all development manual volumes here on my shelf.
While I'm open and sympathetic to any new ideas and improved software systems, including novel windowing concepts, personally, I don't have any unmet window manager needs at present. Any new system shouldn't just replicate a subset of X11, they should go beyond the state of the art to justify the time investment.
X11 is ancient (1987), but it's brilliant. Its designers even anticipated having 16 mouse buttons, and (more importantly) opening a window on a remote system.
The system is flexible, programmable, customizable; I've got all development manual volumes here on my shelf.
While I'm open and sympathetic to any new ideas and improved software systems, including novel windowing concepts, personally, I don't have any unmet window manager needs at present. Any new system shouldn't just replicate a subset of X11, they should go beyond the state of the art to justify the time investment.