He's Mormon. I was just watching him on "are you smarter than a 5th grader" and decided to post a question. He won a butt load of money on Jeopardy for those of you who don't know who he is. http://en.wikipedia.org/wiki/Ken_Jenning...Sure they're connected, in the sense that his intelligence and his religious beliefs share space in the same noggin. But no, I don't think being religious makes you smart, or being smart makes you religious. I think a person's proclivity toward spirituality or religious involvement has far more to do with personality types than IQ.
Smart people may be better at articulating why they either believe or disbelieve, but smarts isn't what got them there.