Do you mean, while it is sitting on the Touchstone charger puck? I'm not sure...I haven't used NFC yet on my phone. I don't have another S3 amongst my friends (they have an iPhone and a Blackberry...)...and my wife doesn't have one to share videos of the kids and what not
...so I can't answer your question.
pjcruiser, do you have anything to share on this question?
I will check, a co-worker has a gs3 when he gets back I will have him attempt.