Umi: this is a silly debate. My point (badly stated) was that the system isn't actually in the cyberlimb; when it deploys, things pop out and start whirring around. It's stored in the cyberarm, but it operates outside of it. Steadicams do work on a similar principle, but even then, you can't stick the camera any old place, you have top mount it just right.
But the reason it's silly is because neither of us would actually use that rule. Even though the RAW could be read that way, I don't think anyone here would actually enforce it. We're debating about fluff, which can be really pointless and unhelpful. I'd rather that we get into a debate about actual mechanics, I'll learn more that way.