Myself, I had no idea that such a camera, dedicated to just "selfies" even existed, and I'm a Photographer .. I kept thinking, have the producers given everyone a smart phone now .. ??
Well they were smartphones. At least it sure looked that way. They could have disabled the radios though so that they could only be used for photos (and apps, I suppose) though. Can't imagine they would provide smartphone data access to the contestants now.
Can you still only use 1 U-turn per season? Wasn't that a rule at some point? Is it still? That would explain why not to use it if you feel somewhat safe.
They have never mentioned that again or made any comments so I don't think so, otherwise they would of said something instead of assuming people would remember years later because that would make it more strategic of a play/choice.