[winswitch] s xpra/winswitch like a remote desktop program?

[...]

My information may be old.

Xpra is not for whole desktops.  It is for the windows generated by
programs.  You can call up a program remotely, not the whole dektop.

There is no windows server.  You can view linux programs on windows but not
the other way.

There is no android client AFAIK, though it was a potential goole summer of
code project so maybe something happened.

You're probably looking for a VNC like turbo VNC.  There's open source VNC
out there, but I don't know their android support.

Elliot