Wonder if Apple would allow some sort of legal waiver iPhone app that a would-be good Samaritan could offer to a person in distress before they administer aid... Don't know the exact details of the case in which the California Supreme Court recently ruled that Samaritans can be sued for non-medical care. (ABC News sides with the Samaritan.) A morale of this story is that more stem cell research is needed so quadriplegics can be healed in order to avoid the aforementioned scenario altogether.

