InspectorGadget: Well that drew a response!
It seems amongst the guys, just in a pocket and removing it prior to sitting down seems to be the preferred option.
The Galaxy S, and a few others, have toughened Gorilla Glass, but is anyone using screen protectors as well?
No, no screen protector. I did try one for a day but didn't like it at all. I don't have any scratches on my phone. Naturally with a phone in this price range you're pretty careful how you handle it. I don't have keys near it and keep it in the soft leather pouch when I'm travelling somewhere where the phone isn't being left on the desk/counter etc.