Here is some information and screen shots from Martin Michlmayr's website.
Some recent mail on the subject:
Date: Fri, 14 Jul 1995 22:55:02 +0300 (GMT+0300) From: "Yuri A. Pudgorodsky"
I have got very good news for you! ... I have just talked to Yuri A. Pudgorodsky, and found out that he will integrate objcX with the LibNeXT library next month, or so.
Some details want to be cleaned...
I really will made LibNeXT library available next month. However it will be a *standalone* X Widget library.
I also will provide patches to run most objcX classes with LibNeXT. Most but not all. May be some other volunteers will complete the integration. As I already realize it is not so easy to make objcX
NXBrowser be happy without Motif's MList. Also LibNeXT Matrix keeps tracking mouse, but I failed to incorporated it into objcX Matrix without making Matrix.m heavily depend on LibNeXT. And other little things...
I wish one day somebody will write a true X event handling code for objcX then the LibNeXT can be totally implemented on Objective C. Remember the discussion of what will happened if someone want to write a subclass of, for example, CustomView.
PS. I have never seen X look that good before ;-)
Thanks to NeXTSTEP and its clean API!