Imagination's what made Einstein so special

Or so says my latest (audio)book from the library, Einstein: His Life and Universe by Walter Isaacson, former Managing Editor of TIME. It's a huge book and I've only just started it, but you can read a review of it at The New York Times - The Scale of Einstein, From Faith to Formulas. Meanwhile, I saw this short video excerpt below in which Isaacson speaks about Einstein and his ideas about God (but I suggest you watch the whole FORA.tv video of Isaacson on Einstein). So was Einstein an atheist, a Deist, a Spinoza-sit? Don't know yet :)