Yea... but I don't need X11... to me it does not look very good on a mobile. I think the Samsung UI is really great.
Heck, I don't even like X11 much on UNIX/Linux systems and prefer the MacOS UI
When we speak of Linux/UNIX we are really not speaking of the UI. The UI is separate, by design.
I use Linux everyday for servers and never have used a Linux UI. That's me.
The good thing is that we are all different. No need to get religious about preferences. We support all here.