as reported I got XServer/Xfree running with serial mouse and fvwm95 windowmanager and QT/X11 

http://community.qnx.com/sf/discussion/do/listPosts/projects.pkgsrc/discussion.pkginfo.topc9535?pageSize=-1#
post_post36852

Now I would need a keyboard driver for USB. I was not able to get it running