I realize that English is probably not your native language, but could you elaborate on your question a little bit? I cannot understand what you are asking.
Is there a project, that is developing a x-server that has an integrated window-manager so that x-forwarded windows will appear like ms-windows' native ones?
I think cygwin's current x-server is based on Xnest so that all the x-forwarded windows will appear within one big window which is my "XFree"-Desktop and they do not seamlessly integrate into the ms-windows-desktop.
