Ignoring the marketing hype for a minute, I will also say that polarization works on more than just reflections. I am not a professional photographer, and I've never been published. However, I have used polarizing filters quite a bit. If you have any doubt that polarization works on more than just reflective surfaces, find someone with a polarizing filter. Preferably you want a linear (not sure I have the right term here, this is the kind for manual focus cameras) rather than circular filter (the kind used for autofocus cameras) so you can see the difference as you change the filter alignment. Have them take a picture of the sky, with and without the filter, on a partly cloudy day. The difference is obvious to even the most casual observer.