RE: Will 3D glasses be regulated by the FDA?
I do experience motion sickness while using polarized 3D glasses - but I feel this is a result of the image/filming, not the glasses per-se. It is possible to use the 3D capability to provide reality presence in a film, or over-the-top effects show-off. Are you watching the film for the story and acting, or is it just an effects vehicle? I suspect both kinds of films will exist; at most, the customer needs to be informed which kind it is.