> Eg. would you dear try to make it multithreaded, one thread per client > application? How easy was it to add support for antialiased fonts? How You dont want a display server threaded for 2D. And threaded X has been done but its not a win in the real world for 2D unlike 3D. > easy is it to enable page flip syncing on vertical refresh for Xv clients? Thats 10 year old stuff, just not integrated in Xfree due to kernel hooks