This is not really a project, just a little something that I wrote to help myself do XBee configuration. This script can change the baud rate, PAN ID, coordinator / endpoint, and (indirectly) My ID and Destination ID (it currently sets them all to 0, as that is what I needed). It is hopefully simple enough to use so that you can add more options if you need them.
Along with an FTDI cable and a level converting XBee to FTDI dongle I made, I can now easily configure my XBees from my computer.
This started in Java as a program written by @Warren, but it used rxtx serial console and I can't stand that library. When I tried to use it recently, the JNI part would keep on segfaulting. Rather than keep fighting with it, I just ported it to Python.
It was written in python 2.7 and uses the pyserial library. Should be portable to just about any OS (I think... Linux / OSX are fine at least).