afw contains the script showCamera.py which claims to "show the layout of CCDs in a camera".
obs_subaru also contains a script called showCamera.py which seems to do much the same job but including distortion. It doesn't work with the current version of cameraGeom.
obs_subaru also contains a script called displayCamera.py which claims to "display the Subaru camera". It makes it possible to plot the focal plane in either DS9 or Matplotlib (the latter looking very similar to the output of afw's showCamera.py).
Please eliminate the apparent duplication between these scripts. If all three are really necessary, document why; if one or more can be removed with no loss of functionality, do so.