Triangle stripping is one of the most efficient ways to increase frame rate in complex scenes. There are good open source libraries around that can be used for stripping. One of them is NvTriStrip available on NVidia website.
NvTriStrip is written in cross-platform C++ and can be easily built with Xcode. I have wrapped up a small Xcode project that actually does the job.All you need to do is provide an input file with your GL_TRIANGLES indices. As an output you will get a list of indices to use with GL_TRIANGLE_STRIP. The program will also tell you the resulting compression rate. Click here to download.