I tried a photo taken with a Fujifilm Z37 which is on the supported list. However, the photo didn't display a serial number on the EXIF data. I'm pretty sure I've never seen an option in a camera to not write just the serial number. Perhaps the list isn't 100% correct?

Interesting that the Canon DSLR do support it, but none of the standard P&S.

Thanks, I completely missed that list. I'm going to try and find a friend with one of those so I can play around with this a bit.