Here is a new framework for version 2.35 of GLUI that you can use in your XCode projects.
A notable improvement since version 2.3's package is that this one is a universal binary for both 32- and 64-bit. Whee...
The source package below includes the XCode project used to create the framework, as well as an XCode project for the 6 examples.
#include <GLUI/glui.h>from your source files
You may also download version 2.3.