Yep, no GOPRos allowed by standard, not just they want to sell their video services but also a security and liability issues. No way will you be allowed to attach it to their helmets for starters.
Anyway, a gopro attached to you will be pretty boring, getting yourself filmed by someone else would be much more interesting.
My tip for skydiving is just to try and enjoy every second of it while you can, because you get like 10 seconds (at least that is what it feels liek), before the chute is pulled. that being said, I've found the parchuting to be far more enjoyable anyway.